00732379

Component

https://doi.org/10.3141/1555-03

http://scholar.google.com...rage&publication_year=1996

The "Highway Capacity Manual" (HCM) provides a methodology in Chapter 9 to estimate the capacity and level of service at a signalized intersection as a function of traffic characteristics and signal timing. At traffic-actuated intersections, the signal timing changes from cycle to cycle in response to traffic demand. An accurate prediction of average phase times and their corresponding cycle length is required to assess the performance of intersections controlled by traffic-actuated signals. The current technique suggested in Appendix II of HCM Chapter 9 for this purpose has not been well accepted. A more comprehensive methodology and a more satisfactory analytical model are described that predict traffic-actuated signal timing for both isolated and coordinated modes with actuated phases. The proposed methodology and model have been verified by simulation augmented by limited field studies. The results are encouraging with respect to their general reliability and their compatibility with the current HCM Chapter 9 structure.

This paper appears in Transportation Research Record No. 1555, Highway Capacity Analysis for Interrupted and Uninterrupted Flow Facilities.

English

p. 17-22

1996

Transportation Research Record

0309059526

Figures (7) ; References (9)

Forecasting; Mathematical models; Performance; Signalized intersections; Traffic actuated controllers; Traffic signal cycle; Traffic signal timing

Highway Capacity Manual

Analytical models

Highways; Operations and Traffic Management; I71: Traffic Theory

TRIS, TRB

Feb 13 1997 12:00AM

• ACCOUNTING FOR NONRANDOM ARRIVALS IN ESTIMATE OF DELAY AT SIGNALIZED INTERSECTIONS
• ANALYSIS OF TRAFFIC OPERATIONS AT ALL-WAY STOP-CONTROLLED INTERSECTIONS BY SIMULATION
• ASSESSING HEAVY VEHICLE IMPACTS ON OPERATION OF RURAL AT-GRADE INTERSECTIONS IN BRAZIL
• CAPACITY AT UNSIGNALIZED TWO-STAGE PRIORITY INTERSECTIONS
• COMPARISON OF PLANNING AND OPERATIONAL ANALYSIS PROCEDURES FOR SIGNALIZED INTERSECTIONS FROM THE "HIGHWAY CAPACITY MANUAL"
• ESTIMATING INTERSECTION APPROACH DELAY USING 1985 AND 1994 "HIGHWAY CAPACITY MANUAL" PROCEDURES
• EVALUATING WEAVING SECTION DESIGNS USING INTEGRATION
• ONE-SIDED WEAVING OPERATIONS ON ONE-WAY FRONTAGE ROADS
• OVERFLOW DELAY MODEL FOR SIGNALIZED ARTERIALS
• PROGRESSION FACTOR FOR QUEUE LENGTH AND OTHER QUEUE-RELATED STATISTICS
• SATURATION FLOW AND CAPACITY OF SHARED LANES: COMPARATIVE EVALUATION OF ESTIMATION METHODS
• STOCHASTIC MODELING OF SHARED-LANE LEFT-TURN PROCESS AND ITS EFFECT ON SATURATION FLOW
• TRUCK PERFORMANCE ON ARGENTINEAN HIGHWAYS
• VARIABILITY OF SPEED-FLOW RELATIONSHIPS ON GERMAN AUTOBAHNS