The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Improvement and Estimation of Effect for Speed Limit Tolerance

속도위반 단속 허용범위 개선안 제시 및 효과 추정

  • Su-hwan Jeong (Dept. of Transportation Eng., Univ. of Ajou) ;
  • Kyeung-hee Han (Dept. of Transportation Eng., Univ. of Ajou) ;
  • Min-ho Lee (Federation of Specialized Driver Training Schools) ;
  • Choul-ki Lee (Dept. of Transportation System Eng., Univ. of Ajou)
  • 정수환 (아주대학교 교통공학과) ;
  • 한경희 (아주대학교 교통공학과 ) ;
  • 이민호 (전국자동차운전전문학원연합회) ;
  • 이철기 (아주대학교 교통시스템공학과)
  • Received : 2023.02.14
  • Accepted : 2023.03.15
  • Published : 2023.04.30
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Abstract

In a low speed limit environment, the speed limit tolerance of automated traffic enforcement devices is very high, which is one of the main factors for the low compliance rate. Therefore, in this study, we aimed to the improve the speed limit tolerance and to present a new standard. The effects of the operator and user errors that can cause speeding by drivers were analyzed. Based on the results of the analysis, an improvement of the tolerance was proposed by applying an error in the enforcement device and GPS speed. In addition, long-term expected safety effects such as the accident rate and severity were estimated from the operator's perspective when improving the tolerance. As a result of the estimation, the speed limit compliance rate, accident rate, and change rate of a number of severe accidents due to speed change, and pedestrian traffic accident mortality rate were all improved in all speed limit environments. The introduction of the proposed improvement is expected to improve road safety significantly.

낮은 제한속도 환경에서 무인 교통단속 장비의 속도위반 단속 허용범위는 매우 높으며. 이는 제한속도 준수율이 낮은 주요인 중 하나이다. 이에 따라 본 연구에서는 무인 교통단속 장비의 속도위반 허용범위를 개선하여, 새로운 제한속도별 허용범위 기준을 제시하였다. 먼저 운전자에게 과속을 유발할 수 있는 운영자·이용자 측면의 오차 실효성을 분석하고, 분석 결과에 따라 단속 장비 오차와 내비게이션 GPS 속도 오차를 적용하여 허용범위 개선안을 제시하였다. 또한, 허용범위 개선 시 운영자 측면에서 장기적으로 기대되는 사고율 및 사고 심각도 등 안전성 효과를 추정하였다. 추정 결과 모든 제한속도의 도로구간에서 제한속도 준수율, 사고율, 속도 변화에 따른 심각도별 사고건수 변화율, 보행자 교통사고 사망률 모두 개선되었다. 따라서 본 연구에서 제시한 속도위반 단속 허용범위 개선안이 도입될 경우, 추정한 개선 효과와 같이 도로의 안전성이 향상될 것으로 기대된다.

Keywords

Acknowledgement

이 논문은 2023년도 정부(경찰청)의 재원으로 과학치안진흥센터의 지원을 받아 수행된 연구임(No.092021C28S01000, 자율주행 혼재 시 도로교통 통합관제시스템 및 운영기술 개발)

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