00227098

Component

https://onlinepubs.trb.or...bproceedings/37/37-022.pdf

IN THE ABSENCE OF A SUITABLE DETERMINISTIC TRAFFIC FLOW MODEL, CAPACITY OF INDIVIDUAL SECTIONS OF SINGLE-LANE ROADWAYS MUST BE INFERRED FROM THE OBSERVED CHARACTERISTICS OF THE TRAFFIC FLOWING THROUGH THE SECTIONS. IN THIS CASE, THE FLOW-CONCENTRATION CHARACTERISTICS OF KINEMATICS ARE USED. VARIOUS FLOW-CONCENTRATION RELATIONSHIPS HAVE BEEN PRESENTED IN TRAFFIC ENGINEERING LITERATURE, AND OBSERVATIONS IN SEVERAL TUNNEL ROADWAY SECTIONS ALSO PRODUCED VARIOUS RELATIONSHIPS. IT IS SUGGESTED THAT THESE CHANGING RELATIONSHIPS ARE RELATED THROUGH THE EFFECT OF BOTTLENECKS. THE KINEMATIC WAVE ANALOGY OF LIGHTHILL AND WHITHAM IS COMPARED WITH EMPIRICAL DEVIATIONS FROM THE THEORY. FINALLY, THE IMPORTANCE OF STIMULATING FURTHER THEORETICAL RESEARCH ON TRAFFIC FLOW IS EMPHASIZED. /AUTHOR/

Vol 37, pp 334-344, 8 FIG, 8 REF. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01490401

English

1958

Highway Research Board Proceedings

Digital/other

Bottlenecks; Empirical methods; Highway capacity; Highways; Kinetics; Single lane traffic; Traffic flow; Tunnels

Relationships

Bridges and other structures; Highways; Operations and Traffic Management

TRIS, TRB

Aug 13 2004 6:56PM

• A COMPARATIVE STUDY OF TWO VEHICLE OPERATING-CHARACTERISTICS INSTRUMENTS
• A PRACTICAL APPLICATION OF THE IMPERFECT DITCH METHOD OF CONSTRUCTION
• A STUDY OF SOIL WAVE PROPOGATION
• ANALYSIS OF HIGHWAY NETWORKS: A LINEAR PROGRAMMING FORMULATION
• APPLICATION OF OPERATIONS RESEARCH TO HIGHWAY PROBLEMS
• CONSOLIDATION OF SOIL UNDER TIME-DEPENDANT LOADING AND VARYING PERMEABILITY
• CORROSION FUNDAMENTALS AND MATERIALS PROPERTIES
• CUTTING AND PENETRATION OF SOILS UNDER VIBRATORY LOADING: A PROGRESS REPORT
• DEEP SILT CONSOLIDATED BY SURCHARGE FILL ON PATAPSCO TUNNEL APPROACH
• DIRECT EVALUATION OF GEOMETRIC HIGHWAY DESIGN
• DRIVER RESPONSE TO RADAR BRAKES
• ECONOMIC ANALYSIS - THE FUNDAMENTAL APPROACH TO DECISIONS IN HIGHWAY PLANNING AND DESIGN
• EFFECT OF STRESS HISTORY AND FREQUENCY OF STRESS APPLICATION ON DEFORMATION OF CLAY SUBGRADES UNDER REPEATED LOADING
• ELECTRONIC CONTROL OF MOTOR VEHICLES ON THE HIGHWAY
• EXPERIMENTAL PRESTRESSED CONCRETE HIGHWAY PROJECT IN PITTSBURGH
• IMPROVING THE DURABILITY OF CONCRETE IN MAINE
• INFLUENCE OF FINE AGGREGATES ON ASPHALTIC CONCRETE PAVING MIXTURES
• LEAN-MIX ROLLED CONCRETE FOR PAVEMENT SLABS
• MEASUREMENT OF DRIVER REACTIONS TO TUNNEL CONDITIONS
• MINNESOTA EXPERIENCE IN COUNTING TRAFFIC ON LOW-VOLUME ROADS
• NATURE AND MAGNITUDE OF SWELL PRESSURE
• PILE TEST LOADS COMPARED WITH BEARING CAPACITY CALCULATED BY FORMULAS
• POLYACIDS AND LIGNIN USED WITH LARGE ORGANIC CATIONS FOR SOIL STABILIZATION
• PORE PRESSURES IN BASE COURSE
• PRETREATMENT OF CONCRETE PAVEMENT FOR TRAFFIC STRIPING
• PROGRESS REPORT OF COMMITTEE ON ECONOMICS OF MOTOR VEHICLE SIZE AND WEIGHT. I: INTRODUCTION
• PROGRESS REPORT OF COMMITTEE ON ECONOMICS OF MOTOR VEHICLE SIZE AND WEIGHT. II: THE FREIGHT'S THE WEIGHT
• RADIOGRAPHIC INSPECTION OF WELDED HIGHWAY BRIDGES
• RESEARCH STUDIES IN CONNECTION WITH DESIGN FEATURES OF THE FLORIDA TURNPIKE
• SHEAR STRENGTH OF PRESTRESSED CONCRETE I-BEAMS
• SOME CHARACTERISTICS OF THE MODULUS OF PASSIVE RESISTANCE OF SOIL: A STUDY IN SIMILITUDE
• SOURCE OF THE NON-MIGRATABLE IONIC CHARGES DEVELOPED BY PORTLAND AND HIGH-ALUMINA CEMENTS DURING HYDRATION
• TIME DEFORMATION STUDIES ON TWO EXPANDED SHALE CONCRETES
• TRIAXIAL TESTING OF BITUMINOUS MIXTURES AT HIGH CONFINING PRESSURES
• URBAN TRAFFIC VOLUME PATTERNS IN TENNESSEE
• USE OF ELECTRONIC COMPUTERS IN MAINTENANCE COST ACCOUNTING
• USE OF FOAMED ASPHALT IN SOIL STABILIZATION
• VALUE OF AUTOMOBILE TRANSIT TIME IN HIGHWAY PLANNING