00802596

Component

https://doi.org/10.3141/1710-20

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

The next edition of the "Highway Capacity Manual" (HCM 2000) will contain for the first time an operational analysis procedure for directional freeway facilities up to 20 to 25 km long. At the simplest level, this procedure integrates the proposed HCM 2000 methods for the analysis of basic, ramp, and weaving segments to enable the analysis of an entire facility. But the proposed facility methodology goes much further. It allows the user to analyze multiple, contiguous time intervals with time-varying demands and capacities. It can handle both undersaturated and oversaturated traffic conditions (with some limitations). In the latter case, both the spatial and time extent of congestion are estimated. Finally, the method permits the investigation of the effect of many traditional and intelligent transportation system-based freeway improvement strategies such as full or auxiliary lane additions, ramp metering, incident management, and a limited set of high-occupancy-vehicle designs on facility performance. Described here is the conceptual model for and computational steps of the methodology, with emphasis on the components for analysis of oversaturated conditions. The scope and limitations of the methods are also highlighted. Reference is given to a companion paper that describes how the results of the method were validated in the field and how they compared with those obtained from widely used freeway simulation models.

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

English

p. 171-180

2000

Transportation Research Record

0309066891

Figures (8) ; References (4)

Analysis; Auxiliary lanes; Freeway operations; Freeways; High occupancy vehicle lanes; Incident management; Intelligent transportation systems; Methodology; Performance; Ramp metering; Traffic congestion

Highway Capacity Manual

Operational analysis

Highways; Operations and Traffic Management; 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
• 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
• VARIATIONS IN CAPACITY AT SIGNALIZED INTERSECTIONS WITH DIFFERENT AREA TYPES
• WEAVING AREA ANALYSIS IN YEAR 2000 "HIGHWAY CAPACITY MANUAL"