Traffic Characteristics of Protected/Permitted Left-Turn Signal Displays

An Application for Driving Simulator Technology: An Evaluation of Traffic Signal Displays for Protected-Permissive Left-Turn Control

The influence of rear turn-signal characteristics on crash risk.

INTRODUCTION The relationship between the relative risk of a rear-end collision during a turn, merge, or lane change maneuver and the characteristics of the rear turn-signal configuration was examined using crash data from seven states in the United States. METHOD Rear turn-signal characteristics-including color, optics, separation, and light source-were identified for 55 vehicle models and u...

Guidelines for Multicriterion Decision-Based Left-Turn Signal Control

left-turn lanes; that is, protected left-turn control is recommended if the number of left-turn lanes exceeds 1. Such a decision process lacks a balanced consideration of other factors such as opposing traffic volume, which may be very low; therefore, the decision may not be rational at all locations or under all conditions. In many cases, an alternative left-turn control type might provide equ...

Deciding Alternative Left Turn Signal Phases Using Expert Sytiems

T Texas Transportation Institute (lTI) conducted a study to investigate the feasibility of applying artificial intelligence (AI) technology and expert systems (ES) design concepts to a traffic engineering problem. Prototype systems were developed to analyze user input, evaluate various reasoning, and suggest suitable left turn phase treatment. These systems were developed using AI programming t...

Analyses of Traffic Parameters Related to Left Turn Gap Acceptance Using Ucf Driving Simulator

The UCF driving simulator, housed in the Center for Advanced Transportation Systems Simulation (CATSS) laboratory, is a high fidelity simulator with access to an expansive virtual driving environment. It consists of a Saturn cab, motion base, scenario editor, operators console and Application Programmer Interface (API) for reading real-time data. The data includes driver inputs, namely steering...