Journal of Korean Society of Transportation (대한교통학회지)

Korean Society of Transportation (대한교통학회)
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A Study on the Effect of Urban Freeway Traffic Control Strategies on Safety

도시고속도로 교통류 제어전략이 교통안전에 미치는 영향에 관한 연구

  • 강정규 (도로교통안전협회 교통과학연구원)
  • Published : 1996.06.01
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Abstract

Based on the traffic and accident data collected on a 4.2km (2.6mile) section of Interstate highway 35W in Minneapolis the relationship between traffic operation variables and safety measures is investigated. An aggregate specification that could be integrated into an urban freeway safety prediction methodology is proposed as a multiple regression model. The specification includes lane occupancy and volume data, which are the control parameters commonly used because they can be measured in real time. The primary variables that appear to affect the safety of urban freeway are : vehicle-miles of travel, entrance ramp volumes and the dynamic effect of queue building. The potential benefits of freeway traffic control strategies on freeway safety are also investigated via a simulation study. It was concluded that improvement of urban freeway safety is achievable by traffic control strategies which homogenize traffic conditions areound critical occupancy values.

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References

  1. Transp. Res. Rec. v.541 Relationships Between Roadway Geometrics and Accidents Agent,K.R.;Deen,R.C.
  2. Journal of Transportation Engineering v.118 no.1 Procedures for Estimating Accident Reductions on Two-Lane Highways Benekohal.R.F.;Hashimi,A.M.
  3. Accid. Anal. Prev. v.14 no.1 Relationship between road accidents and Hourly traffic flow-Ⅱ, Probabilistic approach Cedar,A.
  4. Accid. Anal. Prev. v.14 no.1 Relationships between road accidents and hourly traffic flow-Ⅱ, probabilistic approach Cedar,A.;Livneh,M.
  5. Project Report Submitted to Center for Transportation Studies Development of control emulation progam for Advanced Traffic Management Systems Chang,K.K.
  6. Transp. Res. Rec. v.847 Conceptual development of exposure measures for evaluating highway safety Chang,M.S.
  7. Proceedings of the 10th International Symposium on Transportation and Traffic Theory Traffic responsive control of freeway networks by state feedback approach Cremer,M.;Fleischmann,S.;N.H.Garner;N.H.Wilson(eds.)
  8. Transp. Res. v.22B The reliability of the motorway transport system Ferrari,P.
  9. Transp. Res. Rec. v.541 Effect of certain roadway characteristics on accident rates for two lane two way roads in Conneticut Gupta,J
  10. Accid. Anal. Prev. v.18 no.2 Flexible models for accidents on Chilean roads Jara-Diaz,S.R.;Gonzalez,S.M.
  11. Proceedings of the 10th International Symposium on Transportation and Traffic Theory Freeway speed distribution and acceleration noise Kuhne,R.D.;N.H.Garner;N.H.Wilson(eds.)
  12. Accident Analysis & Prevention v.21 no.3 Macroscopic models for traffic and traffic safety Oppe,S.
  13. Accid. Anal. & Prev. v.1 Three difficulties in the comparison of accident rates Pfundt,K.
  14. Traffic Quarterly v.34 no.4 The relationship of overall geometric characteristics to the safety level of rural highways Polus,A.
  15. Psychology on the Road, The Human Factor in traffic Safety Shinar,D.
  16. Transp. Res. v.24B Control of freeway traffic flow by variable speed signs Smulders,S.
  17. Journal of Transp. Eng. v.116 no.2 Estimating accident benefits reduced freeway congestion Sullivan,E.C.
  18. Traffic Eng. & Control V Motorway accidents: associations between characteristics-related variables Thomas,R.;Gallon,C.A.
  19. Traffic Engineering and Control v.27 no.7;8 Motorway accidents: an examination of accident totals, rates and severity and their relationship with traffic flow Turner,D.J.;Thomas,R.
  20. Traffic Control Systems Handbook FHWA