00389958

Component

http://onlinepubs.trb.org...s/trr/1983/944/944-014.pdf

https://scholar.google.co...ndau&publication_year=1983

The design of traffic management schemes usually requires knowledge of the pattern of trips on the system under scrutiny. This pattern is ordinarily described by an origin-destination (O-D) flow matrix. One common task of this type of matrix is the estimation of flows between the intersection approaches on a stretch of road. Estimation is based on intersection flow counts that are supplemented by a license-plate survey. In this paper a procedure is developed to obtain the most likely O-D flow estimates by using both intersection counts and results of the license-plate survey. The procedure is described in detail on the basis of a numerical example. An earlier paper reported a method of estimation that relies on intersection counts only and does not require the conduct of a sample license-plate survey. An empirical examination is conducted to test how estimation accuracy increases when the added information from the license-plate survey is used. This examination reveals that when the supplementary license-plate survey is small, the maximum-likelihood method yields unsatisfactory estimates. This efficiency is rectified by the use of a Bayesian method. The resulting solution procedure is simple, and satisfactory estimates are produced. (Author)

Publication of this paper sponsored by Committee on Passenger Travel Demand Forecasting. 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

00395366

pp 101-105

1983

Transportation Research Record

0309036658

Print

Figures (4) ; References (12)

Bayes' theorem; Highway traffic control; Origin and destination; Traffic flow; Traffic surveys

Traffic studies

Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB

Nov 30 1984 12:00AM

• Bus, Taxi, and Walk Frequency Models that Account for Sample Selectivity and Simultaneous Equation Bias
• DEVELOPMENT OF A TRAVEL-DEMAND MODEL SET FOR THE NEW ORLEANS REGION
• DEVELOPMENT OF SURVEY INSTRUMENTS SUITABLE FOR DETERMINING NONHOME ACTIVITY PATTERNS
• EFFECT OF SAMPLE SIZE ON DISAGGREGATE CHOICE MODEL ESTIMATION AND PREDICTION
• EQUILIBRIUM TRAFFIC ASSIGNMENT ON AN AGGREGATED HIGHWAY NETWORK FOR SKETCH PLANNING
• ESTIMATING TRIP TABLES FROM TRAFFIC COUNTS: COMPARATIVE EVALUATION OF AVAILABLE TECHNIQUES
• ESTIMATION AND USE OF DYNAMIC TRANSACTION MODELS OF AUTOMOBILE OWNERSHIP
• EXPERIMENTS WITH OPTIMAL SAMPLING FOR MULTINOMIAL LOGIT MODELS
• IDENTIFYING TIME AND HISTORY DEPENDENCIES OF ACTIVITY CHOICE
• MOBILITY ENTERPRISE: ONE YEAR LATER
• NETWORK DESIGN APPLICATION OF AN EXTRACTION ALGORITHM FOR NETWORK AGGREGATION
• PERSON-CATEGORY TRIP-GENERATION MODEL
• PROCEDURE FOR PREDICTING QUEUES AND DELAYS ON EXPRESSWAYS IN URBAN CORE AREAS
• QUICK-RESPONSE PROCEDURES TO FORECAST RURAL TRAFFIC
• RESPONDENT TRIP FREQUENCY BIAS IN ON-BOARD SURVEYS
• SEQUENTIAL, HISTORY-DEPENDENT APPROACH TO TRIP-CHAINING BEHAVIOR
• SOME CONTRARY INDICATIONS FOR THE USE OF HOUSEHOLD STRUCTURE IN TRIP-GENERATION ANALYSIS
• TRIP DISTRIBUTION USING COMPOSITE IMPEDANCE
• TRIP GENERATION BY CROSS-CLASSIFICATION: AN ALTERNATIVE METHODOLOGY
• TRIP TABLE SYNTHESIS FOR CBD NETWORKS: EVALUATION OF THE LINKOD MODEL