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Adaptability Analysis of Emergency Preemption System in Field Operation

긴급차량 우선신호시스템 현장운영에 따른 적용성 분석

  • Kim, Sang-Yeon (Dept. of Traffic Operation., Korea National Police Agency) ;
  • Ko, Kwang Yong (Dept. of Advanced Traffic Eng., Korea Road Traffic Authority) ;
  • Park, Soon Yong (Dept. of Advanced Traffic Eng., Korea Road Traffic Authority) ;
  • Jeong, Young Gje (Dept. of Advanced Traffic Eng., Korea Road Traffic Authority) ;
  • Lee, Choul Ki (Dept. of Transportation System Eng., Univ. of Ajou)
  • 김상연 (경찰청 교통운영과 첨단교통계) ;
  • 고광용 (도로교통공단 교통과학연구원) ;
  • 박순용 (도로교통공단 교통과학연구원) ;
  • 정영제 (도로교통공단 교통과학연구원) ;
  • 이철기 (아주대학교 교통시스템공학과)
  • Received : 2017.03.13
  • Accepted : 2017.05.26
  • Published : 2017.06.30

Abstract

The golden time of emergency vehicle is directly connected to the public safety. Therefore, national attention has increased to cut down the emergency vehicle's travel time. In order to shorten the intial dispatch time of it, emergency preemption system was installed at five intersections, and after test operation, whether it could be introduced in the country was estimated. We analyzed the effect of the traffic volume, emergency vehicle's travel time, and queue length under preemption and non-preemption. In the verification of the emergency preemption system, it was confirmed that the emergency vehicle's travel time was reduced from 350% to 24% compared to non-preemption system(TOD). In the saturated condition, queue length were remained 15 minutes and near saturated condition was about 30 or 45 minutes. At the non-saturated condition, the queue length's difference between emergency preemption system and general signal was small.

긴급출동을 위한 골든타임 확보는 생명과 직결되는 것으로, 초동 출동시간 단축방안에 대한 국민적 관심이 증가하고 있다. 본 연구에서는 초동 출동시간 단축을 위해 '긴급차량 우선신호시스템'을 실제 현장에 도입하고, 시범운영한 후 국내 도입가능여부를 판단하였다. 도입여부 판단은 긴급차량 우선신호 효과검증을 위해 통행시간을 분석하였고, 부방향과 대향직진방향에 미치는 영향 정도는 알아보기 위해 대기행렬길이 분석을 수행하였다. 분석결과, 긴급차량 효과검증에서는 우선신호를 운영할 경우에 긴급차량의 통행시간이 최대 350%에서 최소 24%까지 감소하는 것을 확인하였다. 우선신호에 의한 부방향과 대향방향의 영향은 포화상태일 때 대기행렬길이가 최대 15분, 근포화상태에서는 30분에서 45분 정도까지 지속되었으며, 비포화 상태에서는 긴급차량 통과 직후에도 대기행렬길이가 감소되는 것으로 나타났다.

Keywords

References

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