Travel time threshold determination method and system and intelligent equipment
A travel time and determination method technology, applied in traffic control systems, road vehicle traffic control systems, instruments, etc., can solve the problems of no unified travel time threshold standard, lack of theoretical support for travel time threshold, etc., to ensure timeliness and Reliability, the effect of improving reliability
Active Publication Date: 2020-01-07
GUANGZHOU UNIVERSITY
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[0004] The travel time threshold is a key parameter for calculating the travel time reliability. In the current application process, there is no unified travel time threshold standard, and there is also a lack of necessary theoretical support for determining the travel time threshold.
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[0050]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0051] see figure 1 , a method for determining a travel time threshold proposed in the first embodiment of the present invention, which includes steps S101 to S103:
[0052] Step S101, acquiring the travel parameters of the vehicle on the current road segment, and determining the travel time reliability model of the vehicle according to the t...
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The invention discloses a travel time threshold determination method and system and intelligent equipment. The method comprises the steps of acquiring a travel parameter of a vehicle on a current roadsegment, and determining travel time reliability of the vehicle according to the travel parameter; determining an upper limit of the travel time threshold according to traffic volume of the vehicle at the current road segment and an average actual travel speed and according to maximum running efficiency; and obtaining the travel time threshold of the current road segment according to social benefit change rate, travel cost change rate and the travel time reliability of each traveler. By the method, the problems that a uniform travel time threshold standard is not generated during the currenttravel time reliability estimation process, a necessary a theoretical support for determining the travel time threshold is also lacked and different mechanisms, organism and persons subjectively select different values according to respective demand to cause confusion of an evaluation result and even generate completely-opposite evaluation result with regard to same evaluation item are solved, andthe actual application demand is satisfied.
Description
technical field [0001] The invention relates to the technical field of road travel time reliability evaluation, in particular to a method, system and intelligent device for determining a travel time threshold. Background technique [0002] The road traffic system is an important part of the transportation network, and its stable and reliable traffic operation status is the common wish of road managers and road users, so as to ensure the expected traffic travel. However, in the actual traffic operation process, many factors such as traffic accidents, traffic flow status, weather, climate, etc. all affect the traffic operation status, which makes the expected traffic travel more uncertain. In order to reflect and evaluate this uncertainty, the concept of road running time reliability is introduced into the evaluation of traffic running state. [0003] Currently, there are three commonly used reliability evaluation methods: connectivity reliability, capacity reliability, and t...
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IPC IPC(8): G08G1/01
CPCG08G1/0125
Inventor 臧晓冬
Owner GUANGZHOU UNIVERSITY