Digital Twin, as an emerging technology related to Cyber-Physical Systems (CPS) and Internet of Things (IoT), has attracted increasing attentions during the past decade. Conceptually, a Twin is digital replica physical entity in real world, this leveraged study design cooperative driving system at non-signalized intersections, allowing connected vehicles cooperate with each other cross intersec...

Transportation Research Record: Journal of the Transportation Research Board, No. 2311, Transportation Research Board of the National Academies, Washington, D.C., 2012, pp. 186–194. DOI: 10.3141/2311-18 Department of Civil and Environmental Engineering, Portland State University, P.O. Box 751, Portland, OR 97207. Corresponding author: E. Albright, [email protected]. of buses over passenger vehicles (...

This study analyzes pedestrian crash counts at more than one million intersections and midblock segments using Texas police reports over ten years. Developing large-scale micro-level analyses is challenging due to the lack of geographic information characterization a statewide scale. Therefore, key contributions include methods for obtaining many points related variables across vast network whi...

This study presents the conceptual design of an intersection bus-pedestrian collision warning system for bus drivers approaching an intersection. The basic parameters of the proposed design concept include the bus drivers’ perception-reaction time, the emergency deceleration rate of the bus, and pedestrian walking speed. A bus driving simulation was designed and conducted to analyze bus drivers...

by Kerrie l. schAttler, ph.d., deborAh mcAvoy, ph.d., p.e., ptoe, mAtthew t. christ, msce, And collette m. glAuber introduction Navigating through signalized intersections is considered to be one of the most complex driving tasks. In 2007, the National Highway Traffic Safety Administration (NHTSA) reported that 8,650 people were killed as a result of intersection-related crashes.1 A high propor...