01660304

Component

https://doi.org/10.1177/0361198118792756

Highway-rail grade crossings (HRGCs) have a range of safety and operational impacts on highway traffic networks. This paper illustrates a methodology for evaluating travel-time reliability for the routes and networks affected by trains traveling through HRGCs. A sub-area network including three HRGCs is used as the study network, and a simulation model calibrated to local traffic conditions and signal preemption strategies using field data is used as the platform to generate travel time data for analysis. Time-dependent reliability intervals for route travel time are generated based on route travel-time means and standard deviations. OD level reliability is calculated using a generic reliability engineering approach for parallel and series systems. The route travel time reliability results can be provided as real-time traffic information to assist drivers’ route-choice decisions. The OD level reliability is a way to quantify the impact of HRGCs on highway network operation. This effort fills the gap of reliability research for HRGCs on the route and sub-area network level, and contributes to improving the efficiency of decision-making for both traffic engineers and drivers.

18-04762

English

pp 1-11

2018-12

Transportation Research Record: Journal of the Transportation Research Board

Digital/other

Figures (5) ; References (33) ; Tables (4)

Arrivals and departures; Evaluation; Networks; Origin and destination; Railroad grade crossings; Reliability; Travel time

Highways; Operations and Traffic Management; Railroads

TRIS, TRB, ATRI

Jan 8 2018 11:10AM

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