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Influence of Intersection Geometrics on the Operation of Triple Left-Turn Lanes
Publisher: American Society of Civil Engineers
Abstract: Triple left-turn lanes have been used to reduce vehicle delays, queue lengths, and left-turn storage bays at signalized intersections with relatively higher left-turn demand. Limited research has been conducted to study ...
Bayesian Regression Approach to Estimate Speed Threshold under Uncertainty for Traffic Breakdown Event Identification
Publisher: American Society of Civil Engineers
Abstract: This study aims at developing a robust Bayesian statistical approach to determine the speed threshold (ST) for detecting a traffic breakdown event using traffic flow parameters. Data collected from a freeway section of ...
Investigating the Impact of Rain on Crash-Clearance Duration
Publisher: ASCE
Abstract: Crashes are one of the major causes of traffic delays. It is therefore essential to clear crashes as quickly as possible. However, adverse weather conditions, especially rainy conditions, could potentially influence crash ...
Impact of Freeway Service Patrols on Incident Clearance Duration: Case Study of Florida’s Road Rangers
Publisher: ASCE
Abstract: Florida’s Road Rangers monitor the freeways for incidents to minimize incident clearance duration. The objective of this study was to evaluate the extent to which Road Rangers reduce incident clearance duration. Because ...
Mobility Impacts of Ramp Metering Operations on Freeways
Publisher: ASCE
Abstract: Transportation agencies are implementing traffic management strategies to improve mobility and safety on freeways. Ramp metering is a traffic management strategy deployed to mitigate congestion on freeways by using traffic ...
Safety Evaluation of an Adaptive Signal Control Technology Using an Empirical Bayes Approach
Publisher: ASCE
Abstract: Adaptive signal control technology (ASCT) is a traffic management strategy that optimizes signal timing based on actual traffic demand. Although meant to improve the operational performance of signalized intersections, ...
Estimating the Mobility Benefits of Adaptive Signal Control Technology Using a Bayesian Switch-Point Regression Model
Publisher: ASCE
Abstract: The adaptive signal control technology (ASCT) is a traffic management strategy that adjusts signal timing parameters to optimize corridor performance based on actual traffic demand. This study used a Bayesian switch-point ...
Quantifying the Safety Benefits of Transit Signal Priority Using Full Bayes Before–After Study
Publisher: ASCE
Abstract: Transit signal priority (TSP) is a strategy that prioritizes the movement of transit vehicles through a signalized intersection to minimize transit delay and improve travel time reliability. Although the operational benefits ...
Examining the Influence of Work Zones on the Propensity of Secondary Crashes
Publisher: ASCE
Abstract: Work zones are essential to maintaining and upgrading highways. The constrained driving environment in work zones tends to disturb the normal traffic flow, leading to reductions in speed and road capacity. These conditions ...
Safety Evaluation of High-Occupancy Toll Facilities Using Bayesian Networks
Publisher: ASCE
Abstract: High-occupancy toll (HOT) lanes have increasingly been adopted as a strategy to reduce congestion. While numerous studies have focused on the operations of HOT facilities, little is known about their safety performance. ...