01049368

Component

https://doi.org/10.3141/2035-04

http://scholar.google.com...ibby&publication_year=2007

Signalized diamond interchanges are one of the most common interchange types in U.S. urban areas. Special signal control strategies have been developed for diamond interchanges to address their unique traffic flow and geometric characteristics such as tight spacing and one-way cross streets. The application of diamond interchange signal control strategies on a site consisting of six closely spaced intersections in Reno, Nevada, is documented. These intersections represent or closely resemble a standard diamond interchange. Advance control strategies are derived on the basis of diamond interchange signal control schemes. Simulation results of the timing strategies indicate significant reductions in the number of stops; however, no significant change is found for overall travel time and delay for the study site. Because the proposed control strategies emphasize maximum progression between closely spaced paired signals, the external approaches normally experience increased delay and stops. The proposed control is considered more efficient than the existing control because of significant reduction in stops and much improved driving experience and drivers’ expectations. Public reaction to the new timings has been positive. Similar applications could be easily adopted at other locations with similar site characteristics. The proposed control enhances the knowledge of traffic signal control and coordination for closely spaced intersections.

01091263

English

pp 32-39

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104623

Print

Figures (8) ; References (20) ; Tables (1)

Diamond interchanges; Signalized intersections; Traffic delays; Traffic signal control systems; Traffic signal timing; Travel time; Urban areas

Reno (Nevada)

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Feb 8 2007 4:49PM

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• Evaluation of Adaptive Maximum Feature in Actuated Traffic Controller: Hardware-in-the-Loop Simulation
• Event-Based Data Collection for Generating Actuated Controller Performance Measures
• Feasibility of Traffic Simulation for Decision Support in Real-Time Regional Traffic Management
• Foundation for Jointly Determining Passage Time and Detection Zone Length with Stop Bar Presence Detection
• Implementation of Lane-by-Lane Detection at Actuated Controlled Intersections
• Input–Output and Hybrid Techniques for Real-Time Prediction of Delay and Maximum Queue Length at Signalized Intersections
• Methodology to Assess Traffic Signal Transition Strategies for Exit Preemption Control
• Modeling Traffic Signal Operations with Precedence Graphs
• Models for Quantitative Assessment of Video Detection System Impacts on Signalized Intersection Operations
• Opening the New Woodrow Wilson Memorial Bridge: Planning and Implementing a Major Traffic Switch
• Performance Analysis of Coordinated Traffic Signals During Transition
• Recasting Dilemma Zone Design as a Marginal Cost-Benefit Problem
• Risk Analysis to Account for Uncertainty in Benefit–Cost Evaluations of Intelligent Transportation Systems
• Short or Long—Which Is Better? Probabilistic Approach to Cycle Length Optimization
• Traffic Operations for Hurricane Evacuation
• VisSim-Based Genetic Algorithm Optimization of Signal Timings