01126674

Component

https://doi.org/10.3141/2099-12

http://scholar.google.com...olfe&publication_year=2009

Arterial performance measurement is a critical issue for transportation system management, traveler information, and real-time situation-aware routing. In many urban areas current information on freeway conditions is available, appropriately given the large amount of travel that occurs on these facilities. However, because nearly 40% of the vehicle miles traveled in the United States occur on arterials, there is a need to provide similar information that can be used not only by travelers but also by traffic engineers and managers. Because many arterials are equipped with actuated traffic signals, the use of already installed sensors has been explored as one source of traffic volume, occupancy, or speed data to inform an arterial performance system. Coupled with this, there is a potential to exploit the availability of mobile probe geolocation data from sources such as automatic vehicle location systems for fleets of buses or taxis, or from cellular phone or other Global Positioning System–type devices. To demonstrate the potential value of fusing data from fixed and mobile surveillance systems toward improved arterial performance reporting, this paper describes the results of a case study from Portland, Oregon, that extracted improved arterial performance measures by combining data from traffic signal system detectors and from buses acting as probe vehicles. In particular, graphical techniques are developed that trace the boundaries of the congested regime in time and space along an arterial corridor. The paper includes recommendations for expanding the techniques to other corridors, using higher resolution, real-time transit location data, and online implementation of an arterial travel time information system.

01138793

09-2280

English

pp 102-112

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309126151

Print

Figures (6) ; Maps (2) ; References (17) ; Tables (1)

Arterial highways; Automatic vehicle location; Case studies; Cellular telephones; Data fusion; Global Positioning System; Highway operations; Loop detectors; Performance measurement; Probe vehicles; Real time information; Traffic congestion; Traffic surveillance; Travel time

Geolocation; Graphical techniques

Portland (Oregon)

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Jan 30 2009 6:38PM

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• Are Incident Durations and Secondary Incidents Interdependent?
• Automatic Freeway Incident Detection Based on Fundamental Diagrams of Traffic Flow
• Experiment to Improve Estimation of Vehicle Queue Length at Metered On-Ramps
• Flow Breakdown at Freeway Bottlenecks: Evidence from Automated Flow Analysis
• Impact of Dynamic Message Signs on Satisfaction and Diversion of Toll Road Travelers
• Imputation of Ramp Flow Data for Freeway Traffic Simulation
• Investigating the Impact of Tolls on High-Occupancy-Vehicle Lanes Using Managed Lanes
• Loop Detector Segmentation Error and Its Impacts on Traffic Speed Estimation
• Managing Congestion in Large Brazilian Urban Area Through Logical Interface Between SCOOT and GIS Platform
• Marginal Incident Computation: An Efficient Algorithm to Determine Congestion Spillback due to Incidents
• Safety Evaluation of Truck Lane Restriction Strategies Using Microsimulation Modeling
• Safety Performance of High-Occupancy-Vehicle Facilities: Evaluation of HOV Lane Configurations in California
• Traffic Management of Special Events in Small Communities