may 14, 2015 1 st street and 2 nd street couplet traffic modification project

April 21, 2023

11stst Street and 2 Street and 2ndnd Street Couplet Traffic Street Couplet Traffic Modification ProjectModification Project

April 21, 2023

City of Chico StaffCity of Chico Staffand

Steve WeinbergerSteve WeinbergerW-TransW-Trans

Presented by:

BACKGROUNDBACKGROUND

1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023

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Over the last decade discussions have taken place between the City of Chico and stakeholders regarding all modes of travel on 2nd Street corridor.


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22ndnd Street & CSUC Gateway Street & CSUC GatewayThe 2nd Street Corridor supports large volumes of pedestrians, automobiles, busses, and bicycles, but currently has no designated lane for bicycles.


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Level of ServiceLevel of ServiceHeavy left turn movements from 2nd Street on to Main and Broadway cause traffic congestion and level of service deficiencies – a well known issue.


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As a result of the recently developed Transit Center, ongoing discussions of promoting bicycling on 2nd Street have continued

A holistic look at the Downtown area is necessary, which opened the idea for the concept of converting the direction of traffic on 1st Street and 2nd Street to one-way traffic, creating a “couplet


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EXISTING CONDITIONSEXISTING CONDITIONS


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22ndnd Street Street

1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023

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• Four-lanes (two in each direction)• Shared turn-through lanes• No on-street bicycle lanes• On-street parallel parking• Bisects Downtown

9,500 ADT 10,000 ADT

11stst Street Street


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• Two to Four-lanes (one to two in each direction)• Shared turn-through lanes• No on-street bicycle lanes• On-street parallel parking• Underutilized traffic capacity

3,000 ADT

East-West Travel TimeEast-West Travel TimeCorridor Direction Travel Time 1

2nd Street – Orange Street to Flume Street

Eastbound 165 seconds (18 mph)


Westbound 156 seconds (16 mph)


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Notes:1.Travel time and average speed includes delay at intersections

CollisionsCollisionsSegment

Collisions (2006-2008)

Daily Volum

e

Calculated Collision

Rate (c/mvm1)

Statewide Average

Collision Rate2 (c/mvm)

1st St from Salem St to 2nd St

4 2,900 4.50 3.35

2nd St from Orange St to Broadway

4 8,500 0.93 3.35

2nd St from Broadway to 1st St

9 9,000 4.57 3.35


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Notes:1.c/mvm = collisions per million vehicle miles2.2007 Collision Data on California State Highways, California Department of Transportation


Pedestrian FacilitiesPedestrian FacilitiesFull sidewalks within the

corridorMarked crosswalks at all

intersectionsMany signalized intersections

do not have pedestrian signal heads (pedestrians must follow the traffic signal heads)


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Pedestrian EnhancementsPedestrian EnhancementsTextured Crosswalk with

Bulbouts– 2nd Street/Main Street– 2nd Street/Broadway

Pedestrian signal head with walk countdown timer– 2nd Street/Main Street– 2nd Street/Broadway


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Bicycle FacilitiesBicycle FacilitiesCurrently, most of the corridor

does not serve bicyclists well– Parts of Salem Street and 1st

Street are Bicycle Connectors– Bike lanes on Salem Street


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Transit FacilitiesTransit Facilities


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Downtown Transit Center

B-Line Routes Served1 23 56 9

10 2040 41

PROPOSALPROPOSAL


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The City is exploring modifications to the 1st Street and 2nd Street corridors with the goal of:

– enhancing safety for all travel modes– promoting alternate modes of transportation– providing convenient additional parking– revitalizing the CBD without additional infrastructure improvements– converting to a ‘complete street’


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PROPOSALPROPOSAL


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PROPOSALPROPOSAL


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PROPOSALPROPOSAL

Road Diet• Four-lane to three-lane conversion (one lane in each direction with a center turn lane)• On-street bicycle lanes in both directions


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PROPOSALPROPOSAL

One-Way conversion• Reduce to two through lanes• On-street bicycle lane(s)• Increase parking supply by converting parallel parking to diagonal parking


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PROPOSALPROPOSAL

Roundabout• Transition one-way to two-way traffic• Provides enhanced capacity for east-west traffic• Accommodates non-standard intersection alignment• Gateway to downtown• Increase safety for all modes of travel


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PROPOSALPROPOSAL

One-Way conversion• Reduce to two through lane(s) (one lane west of Broadway)• On-street bicycle lanes• Increase parking supply by converting parallel parking to diagonal parking


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PROPOSALPROPOSAL

Drop-off Circle• Ongoing coordination with CSUC• Transition one-way to two-way traffic• Allow for northbound U-Turn movement• Provide for a gateway entry to CSUC


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PROPOSALPROPOSAL

Two-Way conversion• One through lane in each direction• Increase parking supply by converting parallel parking to diagonal parking• Allow for more circulation options


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PROPOSALPROPOSAL

Diagonal Parking• Increase parking supply by converting parallel parking to diagonal parking


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PROPOSALPROPOSAL


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PROPOSALPROPOSAL


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PROPOSALPROPOSAL

Intersection ModificationsIntersection Modifications Roundabout at 2nd Street/1st

Street/Flume Street– Better accommodates non-standard

intersection alignment and one-way conversion point than a signal

– Serve as a entry point for Downtown Drop-off Circle at 1st Street/Salem

Street– Serve as a entry monument for CSUC– Allows for the 1st Street one-way

conversion– Allows for northbound U-Turn


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PROPOSALPROPOSAL

11stst Street/2 Street/2ndnd Street/Flume Street Street/Flume Street


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PROPOSALPROPOSAL

11stst Street/2 Street/2ndnd Street/Flume Street Street/Flume Street


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PROPOSALPROPOSAL


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Roundabout Goals & IssuesRoundabout Goals & Issues

Bicycle Access

Driveway Access

Movement Restriction

Driveway Access

Right of Way Necessary

Potential for Landscaping or Urban Design elements

Diagonal Parking

Gateway Monument or Community Art

Pedestrian Access Options

PROPOSALPROPOSAL

Diagonal Parking

11stst Street/Salem Street Street/Salem Street(design pending)(design pending)


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PROPOSALPROPOSAL

11stst Street/Salem Street Street/Salem Street(design pending)(design pending)


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PROPOSALPROPOSAL

POTENTIAL RESULTSPOTENTIAL RESULTS


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East-West Travel TimeEast-West Travel TimeCorridor Direction Existing

Travel Time 1

Proposal Travel Time 1


Eastbound 165 seconds (18 mph)

176 seconds (17 mph)(6.7% increase)

2nd Street – Orange Street to Flume Street (via 1st Street to Broadway) 2

Westbound 156 seconds (16 mph)

165 seconds(17 mph)(5.8% increase)


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Notes:1.Travel time and average speed includes delay at intersections2.Traffic is routed though the one-way couplet resulting in a longer distance traveled

Intersection Levels of Intersection Levels of ServiceService


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Balance LOS and volumes along the 1st Street and 2nd Street Corridors

Maintain acceptable LOS at all signalized intersection

Maintain or improve LOS at all unsignalized intersections

Pedestrian FacilitiesPedestrian Facilities Crossing enhancements

– Intersection bulbouts Decreased pedestrian crossing distance Increases pedestrian visibility

– Road Diet Fewer lanes to cross (less exposure area)

– Intersection improvements Pedestrian push buttons Additional signal walk-time for pedestrian

crossing Installation of count-down pedestrian signal

heads ADA upgrades


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Traffic CalmingTraffic CalmingLane Reduction

– Provides for slower, but steady progression of traffic

Diagonal Parking– Narrows the street encouraging

slower drivingRoundabout

– Steady flow of traffic at a controlled speed


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Utilize existing pavement to balance LOS and volumes without additional new infrastructure

Reduced conflicts with turning vehicles

Will provide space for on-street bicycle lane(s)

Allows for replacing some parallel parking with diagonal parking

Improved traffic flow1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023

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One-way CoupletOne-way Couplet

Road DietRoad DietReduced conflicts with turning

vehiclesSlower, but steady flow of trafficShorted pedestrian crossing

distanceAllows for installation of bicycle

lane(s)Generally more comfortable for

bicyclists and pedestrians1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023

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11stst Street/2 Street/2ndnd Street/Flume Street/Flume Street RoundaboutStreet Roundabout

Reduced vehicle conflictsSteady flow of traffic at a

controlled speedShorted pedestrian crossing

distance Improved transition for two-way

to one-way trafficCreates a downtown gateway


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11stst Street/Salem Street CSUC Street/Salem Street CSUC Drop-off CircleDrop-off Circle

Allows for 1st Street to be one-way

Creates a campus gatewayProvides transition between

two-way and one-way traffic


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Diagonal ParkingDiagonal ParkingNarrows street and provides

traffic calming benefitsGoal of increasing parking

supply approximately 25% from parallel parking– Offsets loss where parallel parking

is removed


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A “Complete Street” A “Complete Street” ApproachApproach

Improve traffic flow issues related to left turn movements from 2nd Street onto Main Street and Broadway

Enhance bicycle circulation on 1st Street and 2nd Street with connections to CSUC

Increase parking capacity

Increase bicycle safety

Reduction of conflicts at the intersection of 1st/ 2nd Street/Flume Street near Camellia Way Bridge

Increase pedestrian safety especially at intersection crossings

Extension of downtown business potential by increased traffic on West 1st Street


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NEXT STEPSNEXT STEPS


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City Staff is prepared to implement a construction schedule as early as Summer 2010, in order to continue with this goal, City Staff is requesting support from Internal Affairs on the following suggestions:1st Street & 2nd Street One-way CoupletRoundabout at Flume Street/1st Street/2nd Street/Camellia Way BridgeBulbout Pedestrian rampsDiagonal ParkingRoad Diet along West 2nd Street from Broadway to UPRRSignal Improvements/Timing Adjustments


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NEXT STEPSNEXT STEPS

may 14, 2015 1 st street and 2 nd street couplet traffic modification project

Documents

background1st street

street1st street

mph2nd street orange

adt1st street

street corridor

collisions1st street

street bicycle lanes

existing conditions1st