automated traffic signal performance measures...2016/11/02 · (2015 & prior) •asset...
TRANSCRIPT
![Page 1: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/1.jpg)
Automated Traffic Signal Performance Measures
Mark Taylor Traffic Signal Operations Engineer
Utah Department of Transportation [email protected]
UDOT Conference • Session 7• November 2, 2016
Jamie Mackey Statewide Signal Engineer
Utah Department of Transportation [email protected]
![Page 2: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/2.jpg)
2012 Traffic Signals in the State of Utah
1192 owned and operated by UDOT (59%)
820 owned and operated by cities /counties (41%)
All cities share same ITS communications
93% of UDOT signals connected
79% of non-UDOT signals connected
All cities in Utah & UDOT share same ATMS
Brief Utah Update
![Page 3: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/3.jpg)
Wasatch Front
Utah Green = UDOT Comm. Blue = City Comm. Red = No Comm.
![Page 4: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/4.jpg)
Challenge from UDOT Executive Leaders (2011)
“What would it take for UDOT’s traffic signals to be world class?”
“What’s the trend – are signal operations improving, staying the
same or getting worse?”
“What are our areas of
most need?”
Quality
Improvement
Team
![Page 5: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/5.jpg)
QIT Recommendations (July 2011)
• Communications and
detection maintained during
projects
• Proactive signal
maintenance
• Real-time monitoring
of system health and
quality of operations
![Page 6: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/6.jpg)
![Page 7: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/7.jpg)
POOLED FUND STUDY INDIANAPOLIS NOVEMBER 12, 2014
![Page 8: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/8.jpg)
Salt Lake ATSPM Workshop
Participants – Jan 2016
170 Representatives from 85 Different Organizations, 28 States, DC, & Canada
20 State & Federal Agencies
25 Public Agencies
5 Universities
35 Private Sector Locations
![Page 9: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/9.jpg)
http://docs.lib.purdue.edu/atspmw
![Page 10: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/10.jpg)
ITE 3-part Webinar
April, May, June 2014
ITE Journal, March 2014
ITE Journal, August 2016
![Page 11: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/11.jpg)
SPM Source Code –> Open Source
Mid Nov. 2016
![Page 12: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/12.jpg)
Train the Trainer Workshop
When: Salt Lake City: January 18 & 19, 2017
For Whom: Consultants, Vendors, IT Personnel
Learning Objectives: Installing UDOT ATSPM Source Code, Server/Network Requirements, Configuration, Q&A.
Register: https://www.eventbrite.com/e/udot-train-the-trainer-workshop-for-atspm-tickets-28563394883?aff=es2 Attendance is free.
![Page 13: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/13.jpg)
UDOT’s Road Map
Vision: Keeping Utah Moving Mission: Innovating transportation solutions that strengthen Utah’s economy and enhance quality of life. Strategic Goals: 1. Zero Crashes, Injuries and Fatalities
Yellow & Red Actuations, Speed, Preemption Details
2. Optimize Mobility PCD, Split Monitor, Volumes, Purdue Link Pivot, Purdue Split Failure
3. Preserve Infrastructure Purdue Phase Termination, Daily Detector Problem Email
13
![Page 14: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/14.jpg)
UDOT Asset Management Tiers (2015 & Prior)
• Asset Management Tiers range from 1 to 3
• Tier 1 assets: – Highest value combined with highest risk of negative financial
impact for poor management.
– Very important to UDOT.
– Receive separate funding source.
– Targets and measures are set and tracked.
Source: https://www.udot.utah.gov/main/uconowner.gf?n=15663419239657232
Tier 2 Assets
ATMS / Signal Devices
Pipe Culverts
Signs
Barriers & Walls
Rumble Strips
Pavement Markings
Tier 3 Assets
Cattle Guards
Interstate Lighting
Fences
Curb & Gutter
Rest Areas
Tier 1 Assets
Pavement
Bridges
![Page 15: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/15.jpg)
UDOT Asset Management Tiers (2016 & Future)
• Asset Management Tiers range from 1 to 3
• Tier 1 assets: – Highest value combined with highest risk of negative financial
impact for poor management.
– Very important to UDOT.
– Receive separate funding source.
– Targets and measures are set and tracked.
Source: https://www.udot.utah.gov/main/uconowner.gf?n=15663419239657232
Tier 2 Assets
Pipe Culverts
Signs
Barriers & Walls
Rumble Strips
Pavement Markings
Tier 1 Assets
Pavement
Bridges
ATMS / Signal Devices
Tier 3 Assets
Cattle Guards
Interstate Lighting
Fences
Curb & Gutter
Rest Areas
![Page 16: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/16.jpg)
ATSPM Basic Concept
Hi Def Data Logger included in controller
firmware
A Central Signal System is NOT used or Needed!
Why Model what you can Measure?
Hi Def logs retrieved every 10-60 minutes
from controller to server
Website to display SPM’s
![Page 17: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/17.jpg)
http://udottraffic.utah.gov/signalperformancemetrics
1710 (85%) Utah’s traffic signals
![Page 18: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/18.jpg)
Traffic Data fo
r on
ly a few at
Divisio
n X
.
Divisio
n Y
De
partm
en
t Z
SILOS of Traffic Data
Oth
ers
Full Transparency & Data for Everyone
![Page 19: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/19.jpg)
http://challenger.nvfast.org/spm
286 traffic signals
![Page 20: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/20.jpg)
http://spm.seminolecountyfl.gov/signalperformancemetrics
316 traffic signals
![Page 21: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/21.jpg)
http://signalmetrics.ua.edu
45 traffic signals
![Page 22: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/22.jpg)
Agencies using ATSPMs – Separate systems deployed
(16 and growing)
Overland Park, KS,MnDOTGDOTFDOTSeminole County, FLTucson AZLas VegasVDOTWISDOTCollege Pocatello, IDPennDOTRichardson, TXCollege Station, TX
MnDOT
Overland
Park, KS All of Utah
INDOT
FDOT
Seminole County, FL
WISDOT
VDOT
GDOT
Tuscon, AZ
College Station, TX
Richardson, TX
PennDOT
Pocatello, ID
Las Vegas
(FAST)
Tuscaloosa, AL
ODOT
![Page 23: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/23.jpg)
Old Website
![Page 24: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/24.jpg)
New Website – November 15th http://udottraffic.utah.gov/SPM
![Page 25: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/25.jpg)
How to use ATSPM Website
1 Pick a signal from the map OR enter 4 digit signal number (if known).
![Page 26: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/26.jpg)
How to use ATSPM Website
2 Select an available Metric from the list. Note: Not all signals have all metrics.
![Page 27: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/27.jpg)
How to use ATSPM Website
3 Select a date and time range
4 Click “Create Metric”, wait a few seconds and scroll down to see data.
![Page 28: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/28.jpg)
How to use ATSPM Website (Filter Map by Metric Type)
Select a Metric from the dropdown list. The map will filter all available signals with that metric.
A
Zoom in on map and select your desired signal.
B
C Follow steps 3&4 shown previously (e.g. select date & click “create metrics”)
![Page 29: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/29.jpg)
METRICS & DETECTION
REQUIREMENTS
![Page 30: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/30.jpg)
Detection Metric
None Phase Termination Chart
Split Monitor
Preemption Details
Pedestrian Delay
Lane-by-lane Presence
Lane Group Presence
Purdue Split Failure
Lane-by-lane
Stop Bar Count
Turning Movement Counts
Advanced Count Purdue Coordination Diagram
Approach Volume
Approach Speed (requires detection
with speed service)
![Page 31: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/31.jpg)
Detection
None
Available Metrics
Phase Termination
Chart
Split Monitor
Pedestrian Delay
Preemption Details
![Page 32: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/32.jpg)
Gap out
Max out
Force off
Pedestrian activation
Skip
(shown above phase line)
Metric: Phase Termination Chart
Free Free Coordination
Coordinated phases
Phase N
um
ber
Time of Day
![Page 33: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/33.jpg)
Video detection not working at night
Complaint: Long red at 2 a.m., no other traffic
Metric: Purdue Phase Termination
Detection Requirements: None
Gap out
Max out
Force off
Pedestrian activation
Skip
(shown above phase line)
Minor street through & left turn max out at night only
Before
![Page 34: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/34.jpg)
New detection technology installed
Complaint: Long red at 2 a.m., no other traffic
Metric: Purdue Phase Termination
Detection Requirements: None
Phases are rarely used at night
Gap out
Max out
Force off
Pedestrian activation
Skip
(shown above phase line)
After
![Page 35: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/35.jpg)
Metric: Split Monitor Phase 6
Ph
ase
Dura
tion
Time of Day
![Page 36: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/36.jpg)
Example: I-15 Freeway Closure, September 9-12, 2014
![Page 37: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/37.jpg)
Closure
Example: I-15 Freeway Closure, September 9-12, 2014
Southbound I-15 Closed in Nevada
• 4-day closure
• Detour to Las Vegas: Exit I-15 in Cedar
City
Detour Cedar City
![Page 38: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/38.jpg)
Gap out
Max out
Force off
Sunday 9/7/2014
Monday 9/8/2014
Tuesday 9/9/2014
Wednesday 9/10/2014
Thursday 9/11/2014
Friday 9/12/2014
Saturday 9/13/2014
Full freeway closure
Implemented timing plans
Split Monitor for Northbound (Phase 4) at I-15 and 200 N, Cedar City
![Page 39: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/39.jpg)
System Health
Alerts
Too many max outs 2
No SPM Data 1
Too many force offs 3
Too many ped calls 4
Low PCD detector count 5
![Page 40: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/40.jpg)
Metric: Purdue Phase Termination
Detection Requirements: None
Phase 4 starts
constant call
4/8/2014 4/9/2014
Alert email
sent
Gap out
Max out
Force off
Pedestrian activation (shown above phase line)
Skip
SPMs evaluated
for % max outs
Too many max outs 2
0%
100%
3%
5%
100%
![Page 41: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/41.jpg)
5/21/2016 5/22/2016
SPMs evaluated
for Ped Activations
Alert email
sent
Ph6 Ped
Constant Call
Too many ped calls 4
![Page 42: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/42.jpg)
Work Orders for UDOT ATMS
0
200
400
600
800
1000
1200
De
tectio
n P
rob
lem
Fla
sh
Op
era
tio
ns
Da
ma
ge
d/B
roke
n
Eq
uip
me
nt
No p
ow
er
or
com
m
No
po
we
r o
r co
mm
Ba
d Im
ag
e
No
co
ntr
ol
No
po
we
r o
r co
mm
Da
ma
ge
d/B
roke
n
Eq
uip
me
nt
De
tectio
n P
rob
lem
Se
nso
r P
rob
lem
No
po
we
r o
r co
mm
No
po
we
r o
r co
mm
Da
ma
ge
d/B
roke
n
Eq
uip
me
nt
No
po
we
r o
r co
mm
De
tectio
n P
rob
lem
Da
ma
ge
d/B
roke
n
Equip
ment
Traffic Signals CCTV VMS, TMS, & VSL
RWIS Cabinet Ramp Meter
Wo
rk O
rde
rs
# Work Orders for ATMS Equipment July 2015 to July 2016
![Page 43: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/43.jpg)
Metric: Pedestrian Delay EVENT CODES
45 – Ped Call on
21 – Ped Walk on
Phase 2
Coordinated phase
Phase 4
Side street
Dela
y (
sec)
Time of Day
Time of Day
Dela
y (
se
c)
![Page 44: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/44.jpg)
Active Transportation
![Page 45: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/45.jpg)
Detection
Lane-by-lane Presence
Lane Group Presence
Available Metrics
Purdue Split Failure
![Page 46: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/46.jpg)
Metric: Purdue Split Failure
Occupancy (
%)
Time of Day
![Page 47: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/47.jpg)
Detection
Lane-by-lane Count
Available Metrics
Turning Movement
Counts
![Page 48: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/48.jpg)
Metric: Turning Movement Counts
Metric: Turning Movement Counts Detection Requirements: Stop Bar Counters
Volu
me (
VP
H)
Time of Day
![Page 49: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/49.jpg)
Turning Movement Counts Detection
Wavetronix
SmartSensor
Matrix Wavetronix
Cabinet Interface Device
Click 650
![Page 50: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/50.jpg)
Wavetronix
SmartSensor
Matrix
Turning Movement Counts Detection
![Page 51: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/51.jpg)
Lane Counts
Availability
380 signals statewide
UDOT signals
32%
![Page 52: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/52.jpg)
TMC Data
Accuracy
https://www.udot.utah.gov/main/uco
nowner.gf?n=26445305298673985
![Page 53: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/53.jpg)
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤1
00
v/h
/ln
101-2
50
v/h
/ln
>25
0
v/h
/ln
6 Lanes
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤1
00
v/h
/ln
101-2
50
v/h
/ln
>250
v/h
/ln
5 Lanes
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤1
00
v/h
/ln
101-2
50
v/h
/ln
>25
0
v/h
/ln
4 Lanes
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤1
00
v/h
/ln
101-2
50
v/h
/ln
>25
0
v/h
/ln
3 Lanes
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤1
00
v/h
/ln
101-2
50
v/h
/ln
>25
0
v/h
/ln
2 Lanes
TMC Volume Accuracy 2-lane
Approach
95
% C
on
fid
en
ce
In
terv
al P
erc
en
tag
es
3-lane
Approach
4-lane
Approach
5-lane
Approach
6-lane
Approach
![Page 54: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/54.jpg)
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
95% Confidence Interval 0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0
Reported Total Volume
TMC Volume Accuracy - Example
Volu
me (
VP
H)
Time of Day
9000 S & Monroe WB Thru Lanes (4 lanes)
Correction Range:
25 to 180 vehicles
(1.4% to 10.1%)
![Page 55: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/55.jpg)
TMC Data Smell Test Incorrect detectors
configured State St & 3300 S SB Thru Lanes
![Page 56: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/56.jpg)
TMC Uses
• Traffic Studies
• Counts
• Signal Warrants
• Growth
• Performance evaluation
• Capacity analysis
• Lane utilization
• Planning models
• Traffic patterns and impacts
• Weather
• Events, School, Holiday
• Construction, Maintenance
• Construction & Maintenance
• Lane closures
• Performance targets
• Signal Timing Optimization
• Split allocation
• TOD schedule
![Page 57: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/57.jpg)
Determine Approach Capacity
![Page 58: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/58.jpg)
Quantify Lane Utilization
L1 T1 T2
TR1
![Page 59: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/59.jpg)
Detection
Setback Count Zones
Available Metrics
~400ft
Purdue Coordination
Diagram
Approach Volume
Arrivals on Red
Approach Delay
![Page 60: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/60.jpg)
Metric: Purdue Coordination Diagram
Vehicles arriving on green
Tim
e in C
ycle
(s)
Time of Day
Vehicles arriving on red
![Page 61: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/61.jpg)
Metric: Approach Volume V
olu
me (
vph)
Time of Day
![Page 62: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/62.jpg)
Metric: Approach Volume V
olu
me (
vph)
Time of Day
![Page 63: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/63.jpg)
Approach Volume
Detection Wavetronix
SmartSensor
Advance
![Page 64: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/64.jpg)
Approach Volume
Detection
![Page 65: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/65.jpg)
Approach Volume
Availability
679 signals statewide
UDOT signals
57%
![Page 66: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/66.jpg)
https://www.udot.utah.gov/main/uco
nowner.gf?n=28384521790001597
Approach Volume
Accuracy
![Page 67: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/67.jpg)
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤100 v/h/ln
101-250 v/h/ln
>250 v/h/ln
1 Lane
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤100 v/h/ln
101-250 v/h/ln
>250 v/h/ln
2 Lanes
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
≤100 v/h/ln
101-250 v/h/ln
>250 v/h/ln
3 Lanes
Approach Volume Accuracy 1-lane Approach 3-lane Approach 2-lane Approach
95
% C
on
fid
en
ce
In
terv
al P
erc
en
tag
es
![Page 68: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/68.jpg)
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
95% Confidence Interval 0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 0
Reported Total Volume
Approach Volume Accuracy - Example
Volu
me (
VP
H)
Time of Day
University Avenue & 3300 N NB Lanes (2 lanes)
Correction Range:
129 to 301 vehicles
(8.5% to 20%)
![Page 69: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/69.jpg)
Approach Volume Smell Test - Undercounting
PCD is very sparse. Low volume without peaks.
![Page 70: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/70.jpg)
Normal
Too high
Approach Volume Smell Test - Overcounting
Volu
me (
vph)
Time of Day
![Page 71: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/71.jpg)
Normal
Too high
Approach Volume Smell Test - Overcounting
Volu
me (
vph)
Time of Day
Tim
e in C
ycle
(s)
Time of Day
Volu
me (V
PH
)
PCD is uniformly dense –
Sensor needs calibration
![Page 72: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/72.jpg)
Approach Volume Uses
• Traffic Studies
• TOD distribution
• AADT
• Growth
• Performance evaluation
• Overcapacity periods
• Planning models
• Traffic Impacts
• Weather
• Events, School, Holiday
• Construction, Maintenance
• Construction & Maintenance
• Lane closures
• Performance targets
![Page 73: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/73.jpg)
Allow Lane Closures
![Page 74: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/74.jpg)
Detection Available Metrics
~400ft
Setback Count Zones
with speed Approach Speed
![Page 75: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/75.jpg)
Metric: Approach Speed
Speed (
MP
H)
Time of Day
![Page 76: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/76.jpg)
Approach Speed
Detection
![Page 77: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/77.jpg)
Approach Speed Data Accuracy
LiDAR
Advance sensor
+/- 2 mph
“Good enough
for practical
engineering
applications”
![Page 78: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/78.jpg)
Approach Speed Uses
• Traffic studies
• Speed Limits
• Performance evaluation
• Overcapacity periods
• Corridor evaluation and
comparison
• Purdue Traffic Ticker
• Planning models
• Traffic Impacts
• Weather
• Events, School, Holiday
• Construction, Maintenance
• Signal Timing Optimization
• Yellow/Red calculations
• Link travel times
![Page 79: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/79.jpg)
Metric: Approach Speed
Speed (
MP
H)
Time of Day
Snow storm starts
![Page 80: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/80.jpg)
Traditional Process Modified Process with SPMs
Collect Data
Model
Optimize
Implement & Fine-tune
Time-of-day
Cycle Length Splits
Offsets
Review SPMs & Field
Observation
Model
Optimize
Implement & Fine-tune
Time-of-day Cycle Length
Splits
Offsets
Optimization with ATSPMs
![Page 81: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/81.jpg)
Monitoring Trends (Riverdale Rd – 11 intersections)
Retiming Project
![Page 82: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/82.jpg)
UDOT Signal Timing Focus Group (July 2014)
• How do you feel about UDOT?
• How do traffic signals make you feel?
![Page 83: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/83.jpg)
Focus Group Key Findings (July 2014)
UDOT is perceived positively, with innovation as the primary driver of positive impressions.
Drivers believe traffic signal synchronization is improving.
Drivers feel UDOT should be open about its accomplishments in a way that protects its credibility.
83
![Page 84: Automated Traffic Signal Performance Measures...2016/11/02 · (2015 & Prior) •Asset Management Tiers range from 1 to 3 •Tier 1 assets: –Highest value combined with highest](https://reader034.vdocument.in/reader034/viewer/2022050609/5fb008ee3dbb656d053d9de5/html5/thumbnails/84.jpg)
60 S Commercial – Love green lights? So do UDOT traffic engineers
http://udot.utah.gov/greenlights