ESTIMATING TIME TRAVEL DISTRIBUTIONS ON SIGNALIZED ARTERIALS

摘要

A system is provided for estimating time travel distributions on signalized arterials. The system may be implemented as a network service. Traffic data regarding a plurality of travel times on a signalized arterial may be received. A present distribution of the travel times on the signalized arterial may be determined. A prior distribution based on one or more travel time observations may also be determined. The present distribution may be calibrated based on the prior distribution.

主权项

1. A method for estimating time travel distributions on signalized arterials, the method comprising:
receiving travel data about a signalized arterial collected by one or more reidentification devices, the travel data corresponding to data collected within a common time segment in each of a plurality of different days; receiving real-time travel data about the signalized arterial collected by one or more reidentification devices; and executing instructions stored in memory, wherein execution of the instructions by a processor:
normalizes the travel data into a plurality of individual pace values, the pace values expressed as a ratio of time per distance,calculates an average pace value for the signalized arterial as a linear combination of the individual pace values weighted by distance traveled across the signalized arterial,estimates a distribution based on the average pace value, travel data, and store the estimated distribution in memory,calibrates the distribution based on the real-time travel data, andgenerates a real-time prediction of the traffic conditions of the signalized arterial based on the calibrated distribution.