00802599

Component

https://doi.org/10.3141/1710-23

http://scholar.google.com...Zhou&publication_year=2000

The capacity analysis procedure for signalized intersections included in the "Highway Capacity Manual" (HCM) needs to consider the area type of a given intersection. The area-type adjustment factor used in the procedure is based on conclusions from a limited number of studies. In addition, the procedure for using an area-type adjustment factor is not well defined in the HCM. A study undertaken in central Florida to study the effects of four different area types on the capacity of signalized intersections is summarized. These four area types include recreational, business, residential, and shopping. Study results indicated that differences in saturation headways among different area types were significant. The saturation headways observed in recreational areas were significantly higher than those in other areas for both left-turn and through movements. The through-movement saturation headways obtained in residential, shopping, and business areas were not significantly different. This study resulted in a new area-type adjustment factor of 0.92 for recreational areas, whereas the factor is 1.00 for other areas. Results in this study also indicated that the differences in start-up lost time among different area types were not significantly different. In addition, according to the results of the analysis, 75% of the yellow interval in undersaturated conditions and 35% of the yellow interval in oversaturated conditions were found to be unused and considered clearance lost time.

This paper appears in Transportation Research Record No. 1710, Traffic Flow Theory and Highway Capacity 2000.

English

p. 199-204

2000

Transportation Research Record

0309066891

References (8) ; Tables (7)

Adjustment factors; Analysis; Areas; Business districts; Clearance interval (Traffic signal cycle); Field studies; Headways; Highway capacity; Left turns; Methodology; Recreational facilities; Residential areas; Saturation flow; Shopping facilities; Signalized intersections; Through traffic; Yellow interval (Traffic signal cycle)

Highway Capacity Manual

Florida

Highways; Operations and Traffic Management; Terminals and Facilities; I71: Traffic Theory

TRIS, TRB, ATRI

Nov 29 2000 12:00AM

• ANALYTICAL EXPRESSIONS OF INCIDENT-INDUCED FLOW DYNAMICS PERTURBATIONS: USING MACROSCOPIC THEORY AND EXTENSION OF LIGHTHILL-WHITHAM THEORY
• ANALYZING ARTERIAL STREETS IN NEAR-CAPACITY OR OVERFLOW CONDITIONS
• CAR-FOLLOWING AND COLLISION CONSTRAINT MODELS FOR UNINTERRUPTED TRAFFIC: REEXAMINATION USING HIGH-PRECISION GLOBAL POSITIONING SYSTEM DATA
• CHARACTERIZING AND MODELING OBSERVED LANE-CHANGING BEHAVIOR: LANE-VEHICLE-BASED MICROSCOPIC SIMULATION ON URBAN STREET NETWORK
• COMPARISON OF QUEUE-LENGTH MODELS AT SIGNALIZED INTERSECTIONS
• DELAY VARIABILITY AT SIGNALIZED INTERSECTIONS
• DETERMINATION OF CAPACITY AT ALL-WAY STOP-CONTROLLED INTERSECTIONS
• DEVELOPMENT OF DRIVER POPULATION FACTORS FOR CAPACITY ANALYSIS OF SIGNALIZED INTERSECTIONS
• EFFECTS OF RELAXATION AND ANTICIPATION ON RIEMANN SOLUTIONS OF PAYNE-WHITHAM MODEL
• ESTIMATION AND APPLICATION OF DYNAMIC SPEED-DENSITY RELATIONS BY USING TRANSFER FUNCTION MODELS
• EVALUATION OF CORSIM CAR-FOLLOWING MODEL BY USING GLOBAL POSITIONING SYSTEM FIELD DATA
• EXPERIMENTAL VERIFICATION OF TIME-DEPENDENT ACCUMULATION PREDICTIONS IN CONGESTED TRAFFIC
• FREEWAY FACILITY METHODOLOGY IN "HIGHWAY CAPACITY MANUAL" 2000
• GAS-KINETIC MODELING AND SIMULATION OF PEDESTRIAN FLOWS
• MODELING FOUR-DIRECTIONAL PEDESTRIAN FLOWS
• NEW INSIGHTS INTO FREEWAY CAPACITY AT WORK ZONES: EMPIRICAL CASE STUDY
• NEW MODEL FOR EVALUATION OF TRAFFIC OPERATIONS AT ELECTRONIC TOLL COLLECTION PLAZAS
• OBSERVATION-BASED LANE-VEHICLE ASSIGNMENT HIERARCHY: MICROSCOPIC SIMULATION ON URBAN STREET NETWORK
• PREDICTIVE TIME-BASED FEEDBACK CONTROL APPROACH FOR MANAGING FREEWAY INCIDENTS
• QUASI-VARIATIONAL INEQUALITY APPROACH TO MULTI-USER-CLASS DYNAMIC TRAFFIC ASSIGNMENT
• SIMULATION LABORATORY FOR EVALUATING DYNAMIC TRAFFIC MANAGEMENT SYSTEMS
• THEORY OF BREAKDOWN PHENOMENON AT HIGHWAY BOTTLENECKS
• USER ASSESSMENT OF INTERSECTION CHAPTER PROCEDURES IN "HIGHWAY CAPACITY MANUAL" 1997 UPDATE
• VALIDATION OF HIGH-FIDELITY TRAFFIC SIMULATION MODELS
• VALIDATION OF LEFT-TURN DELAY AT TWO-WAY STOP-CONTROLLED INTERSECTIONS
• VALIDATION RESULTS FOR FOUR MODELS OF OVERSATURATED FREEWAY FACILITIES
• WEAVING AREA ANALYSIS IN YEAR 2000 "HIGHWAY CAPACITY MANUAL"