Article history: Received: 3.9.2015. Received in revised form: 14.10.2015. Accepted: 19.10.2015. Delay and number of vehicle stops are important indicators that define the level of service of a signalized intersection. Therefore, they are usually considered for optimizing the traffic signal timing. In this study, ANNs are employed to model delay and the number of stops estimation at signalized ...

The use of crash data based methodologies for safety evaluation has been usually problematic due to the many shortcomings such as, unavailability and low quality of historical crash data. Other than crash data based analysis, development of micro-simulation models in conjunction with surrogate safety measures is shown to have potential to complement traditional safety analysis. However several ...

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...

Opposing left-turning vehicles at signalized intersections block each others’ view of oncoming traffic. The ability to see oncoming traffic is critical for safe negotiation of left-turns at intersections during a permitted left-turn phase of the signal. Offsetting of opposing left-turn lanes at signalized intersections improves sight distance for left-turning motorists. This paper reports on a ...

Signalized intersections can increase the vehicle stops and consequently energy consumption by forcing stop-and-go dynamics on vehicles. Eco-driving with help of connectivity is a solution that could avoid multiple improve efficiency. In this paper, an eco-driving framework developed, which finds energy-efficient speed profile both up- downstream signalized intersection in free-flow situations ...

T impact studies have been widely used to identify and manage urban traffic growth. Many state and lcJcal government agencies rely on the information contained in traffic impact studies when considering a proposed development and when determining the extent of roadway improvements necessary to mitigate any negative traffic impact generated by the development. Most traffic impact studies use the...