Judgment and grading system for heavy-load traffic data of national and provincial trunk lines

Abstract

The invention discloses a judgment and grading standard system for heavy-load traffic of national and provincial trunk lines, and the system comprises a data collection module which collects the traffic data of a road section; a traffic volume data vehicle type equivalent conversion module; an axle load spectrum calculation module which is used for obtaining the daily average equivalent axle number of the designed lane in the initial year and the equivalent design axle load accumulative action number on the designed lane within the designed service life; a typical truck discriminating and judging module which is used for judging according to the grounding pressure intensity of the heaviest axle tire and axle group composition; a typical truck daily traffic volume statistical module which is used for performing statistics according to the judged typical truck type; and a heavy traffic judgment and grading module. According to the system, on the basis of analyzing the correlation between the annual average daily traffic volume index of typical trucks and the cumulative traffic volume index of large buses and trucks on the designed lanes within the designed service life, the heavy traffic is graded, a national and provincial trunk line heavy traffic distribution diagram is formed, and aiming at road sections with different heavy traffic levels, an operation management unit provides corresponding operation and maintenance countermeasures.

Description

technical field [0001] The invention belongs to the technical field of traffic data processing, in particular to a judging and grading system for heavy-duty traffic data of national and provincial arterial lines. Background technique [0002] Heavy-duty traffic on ordinary national and provincial trunk roads in Shanxi is serious, manifested in three aspects: first, the proportion of trucks is high. In the average daily traffic volume of vehicles, passenger cars accounted for 41.2%, trucks accounted for 58.8%, trucks accounted for 69% in serious areas such as Luliang, Xinzhou and other places, and Shuozhou trucks accounted for 79%, much higher than the national and provincial arterial road trucks The ratio is 35.2% average. Secondly, the uniaxial load of the truck is heavy. The proportion of trucks with a single axle load greater than 10t in the province is 36.78%, and the proportion of single axle loads greater than 13t is 4.82%. It shows that the axle load of 36.78% of t...

AI Technical Summary

Problems solved by technology

Third, truck tires have strong ground pressure

The phenomenon of heavy traffic has caused a large number of ruts, cracks, potholes and other diseases on the national and provincial trunk roads in Shanxi, which have been repeatedly repaired but repeatedly damaged, seriously affecting the traffic capacity and safe operation of the national and provincial trunk roads

[0003] At present, there is no limitation and classification for heavy-duty traffic in China, and it is impossible to accurately design the road surface structure plan and maintenance treatment plan. The management unit cannot reasonably allocate maintenance funds according to the road heavy-duty level, resulting in heavy-duty traffic serious road sections that cannot be treated in time. Too many maintenance funds have been invested in road sections with heavy traffic and not serious.

The current "Code for Design of Highway Asphalt Pavement" adopts the "cumulative traffic volume of large passenger cars and trucks on the design lane within the design service life" to classify different traffic load levels. graded on

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