Expressway network running status detection method based on OBU

Abstract

An expressway network running status detection method based on OBU adopts a toll station ETC lane OBU detectors and expressway side OBU detectors to obtain expressway section traffic flow speed, expressway network running indexes and expected running time between every two expressway sections and informs the information to vehicles. In the detection method, data of the toll station ETC lane OBU detectors and data of the expressway side OBU detectors are combined, the accuracy of detection results of real-time traffic circulation states of an expressway network and the estimation reliability of the running time between every two expressway sections are improved, and accordingly the supervision ability and service level of the traffic management department are improved.

Description

technical field [0001] The invention relates to a method for detecting the running state of a highway network, in particular to an OBU-based method for detecting the running state of a highway network. Background technique [0002] Since 2005, my country has organized the research and application of key technologies for non-stop toll collection services on national highways. By 2013, the unified standard non-stop toll collection system (also known as electronic toll collection system, ETC: Electronic Toll Collection) has covered 26 provinces and cities. More than 6 million users. [0003] The user's OBU is an information carrier with a unique identification code. In terms of OBU application, Patent Document 1 (CN202523116U) discloses a mobile network-based non-stop highway driving path recording system, which detects the OBU module through the RSU module and sends It reads the information in the temporary path information table, that is, the number of the mobile base station...

AI Technical Summary

Problems solved by technology

However, this method only uses roadside detection to achieve statistical analysis of road network status, which can only reflect the traffic operation status of the road section between two DSRC information collection points in a trip, and cannot reflect the deceleration through the entrance, ramp travel time, and clock synchronization. Therefore, it cannot fully and reliably reflect the real operation of the expressway network, nor can it provide expressway travelers with a reliable estimate of the travel time between two toll stations, so that it cannot effectively improve the expressway of the traffic management department. Highway Network Operation Supervision Capability and Service Level

[0006] It can be seen that traditio

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