OBD Data Based Road Condition Monitoring System - By Friction Coefficient and Slip Ratio Analysis -

Aims of this study are to provide the level of road surface deterioration and road material information for drivers and operators through measuring the friction coefficient of the road surface and tyre slip ratio. The authors consider that the appropriate action and operating cost reduction are also the main purpose of this study. There are 3 steps. Step 1 is analysis of the road (old asphalt, new asphalt, concrete, gravel) by comparing the British pendulum tester (BPT) measurement and the onboard diagnosis OBD) value. Through the analysis of variance (ANOVA), the coefficient between the BPT measurement and OBD data is high (P-value 0.03<0.05). Step 2 aims to build up a road condition monitoring system which is able to distinguish road surface materials and roughness by using the friction coefficient and slip ratio (in conditions that require extreme brake, extreme start). The road condition is continuously evaluated in terms of material, and is classified into asphalt (pavement) and gravel (without pavement) by a road classification algorithm. Step 3 is about a method to evaluate road deterioration by long term monitoring in general driving situations. In order to evaluate the level of road deterioration, OBD data about friction coefficient factor and slip ratio roughness are collected. By using these data, an experiment for road deterioration at the same section on the expressway is conducted. According to the results of the experiment, the authors can separate road materials and evaluate the road deterioration. They can expect to reduce a lot of the maintenance costs which are needed 10-20 years later.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 10p
  • Monograph Title: Proceedings of the 25th World Road Congress - Seoul 2015: Roads and Mobility - Creating New Value from Transport

Subject/Index Terms

Filing Info

  • Accession Number: 01674216
  • Record Type: Publication
  • ISBN: 9782840604235
  • Report/Paper Numbers: 0451
  • Files: TRIS
  • Created Date: Jun 18 2018 7:20PM