traffic bottleneck analysis and real-time traffic...
TRANSCRIPT
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Traffic Bottleneck Analysis and Real-Time Traffic Services
ESRI European Congress 2014 October, 2014Jeroen Brouwer
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Congestion is a global problem
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The worst 20 cities in 2013
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3 February 20154
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Traffic Bottleneck Analysis
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Floating Car Data provides new opportunities
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Example Speed Analysis for Amsterdam
Roadname: Ij-tunnelLength: 265 Meters Average travel time: 15.8 SecondsMedium travel time: 14.9 SecondsAverage Speed: 63.6 Km/hMedian Speed: 64.0 Km/hStandard Deviation Speed: 10.7Sample Size: 16082 vehicles
Average speeds for morning rush hour (km/h)
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Example Congestion Analysis for Amsterdam
Travel time ratio: morning peak vs. night
Roadname: A10Length: 42 Meters Travel Time Ratio: 4.95
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Example Congestion Analysis for Amsterdam
Travel time ratio: morning peak vs. night
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Analysis Example Italy
10
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Case Study Citilabs - SPEA
Where: A14 Bologna S.Lazzaro – Castel S.PietroCastel S.Pietro – ImolaImola – Dir.Ravenna
When: 2012, October #12012, August, 15 #2
What: SPEA – vehicular data of vehicle types: cars, motorcycles, caravan, trucks under 3,5 tons, collected by Tutor portalsTomTom – vehicular data collected by millions of TomTom navigation device, mainly from In car Dash Navigation
Purpose: compare data provided by SPEA and data derived from TomTom Floating car Data. This in order check the validity of Floating Car Data
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The data is compared for a specific segment. Speed data from the Ground Loops (Vel. CI. A) are compared with Floating Car Data (TomTom)
Central time zone of the day is highlighted in yellow, from 06:00 to 21:00
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Non-Loop analysis number 1Approach to the Bologna San Lazzaro toll booth (dir. Bologna)
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Selection of segments of interest from TomTom shapefile
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Analysis of TomTom average speed data in the approach, the transit and in the way out from of the tollbooth
Toll
ApproachWay Out
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Analysis of a situation on interest #2approach to the Ravenna barrier (dir. Ravenna, 2012 August 15)
Non-Loop analysis number 2Approach to the Ravenna Barrier toll booth (dir. Ravenna)
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Selection of segments of interest from TomTom shapefile
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Barrier
Approach Way out
Analysis of TomTom average speed data in the approach, the transit and in the way out from of the tollbooth
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Real-Time Traffic Services
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21
IQ Routes
Real Time Probe Data
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Traffic Incidents and Traffic Flow
• File contains information ONLY for the road stretches affected by incident/congestion
• Accurate delay, start and end location
• Current speed information on all relevant roads – both congested and freeflow
• Easy GIS integration
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4. TomTom Traffic3. Speed Profiles2. Map Share 1. Base maps
4. TomTom Traffic3. Speed Profiles2. Map Share 1. Base maps
4. TomTom Traffic3. Speed Profiles2. Map Share 1. Base maps
4. TomTom Traffic3. Speed Profiles2. Map Share 1. Base maps
The 4 steps in accurate routing
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Example: Driving to Frankfurt at 9AM Friday
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Example: Driving to Frankfurt at 5PM Friday
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Smart Planning
Travel Time: 62 minutesDistance: 50.0 km
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Smart Planning
Travel Time: 58 minutesDistance: 51.1 km
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Travel Time Isochrones (Service Areas)
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Congestion Impact
Normal accessibilityArea Accessible within 10 minutes of Origin Point
Exceptional accessibility17:00 on a FridayArea Accessible within 10 minutes of Origin Point
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Questions?
30