01049569

Component

https://doi.org/10.3141/2012-10

http://scholar.google.com...onis&publication_year=2007

A fully documented case of problem identification, simulation, implementation, and evaluation has been developed for freeway bottleneck congestion mitigation. The benefits of using simulation for assessing improvement scenarios of a congestion-generating merge between two freeways and an on-ramp in the central part of Attica Tollway in Athens, Greece, are presented. The best feasible alternative identified by two simulation programs, Integration and VisSim, was constructed, and before and after field and simulation results are available. Only 16 months passed between the initial data collection for bottleneck analysis and the 2 months of evaluation with the constructed improvement, thereby minimizing large temporal and other exogenous factors. As a result of conservative simulation assumptions, larger than forecast improvements in speed, travel times, and queue reduction were realized. The two simulators, however, provided reasonable and comparable measures of performance, which were instrumental in the decision to construct the proposed improvement.

01084472

English

0000-0001-6983-2321

pp 84-93

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104388

Print

Figures (6) ; References (19) ; Tables (3)

Before and after studies; Bottlenecks; Freeway operations; Freeways; Implementation; On ramps; Toll roads; Traffic congestion; Traffic mitigation; Traffic queuing; Traffic simulation; Traffic speed; Travel time

INTEGRATION (Computer model); VISSIM (Computer model)

Freeway-to-freeway merges

Athens (Greece)

Highways; Operations and Traffic Management; Research; I73: Traffic Control

TRIS, TRB, ATRI

Feb 8 2007 5:27PM

• Characteristics of Breakdown Phenomenon in Merging Sections of Urban Expressways in Japan
• Evaluating Benefits of A Systemwide Adaptive Ramp-Metering Strategy in Portland, Oregon
• Evaluation of Effects of Ramp Metering on Merging Operations
• Evaluation of Impacts of Open Road Tolling on Main-Line Toll Plaza
• High-Occupancy Vehicle Lanes and Hybrid Vehicles
• Improving Queue Size Estimation for Minnesota’s Stratified Zone Metering Strategy
• License Plate and Telephone Numbers in Changeable Message Sign Amber Alert Messages
• Methodology for Identifying Vulnerable Sections in a National Road Network
• Modeling Freeway Diverging Behavior on Deceleration Lanes
• Probabilistic Data-Driven Approach for Real-Time Screening of Freeway Traffic Data
• Probe Vehicle Runs or Loop Detectors? Effect of Detector Spacing and Sample Size on Accuracy of Freeway Congestion Monitoring
• Safety Impacts of Freeway Managed-Lane Strategy: Inside Lane for High-Occupancy Vehicle Use and Right Shoulder Lane as Travel Lane During Peak Periods
• Simulation Analysis of Truck-Restricted and High-Occupancy Vehicle Lanes
• Traffic Diversion Effect of Ramp Metering at Individual and System Levels