Median U-Turn Intersection (MUTI) is an alternative to conventional signalized intersections that replace the direct right turns and/or the through movements at the intersection by facilitating these movements indirectly using U-turns in a wide median. This reduces the number of potential conflict points at the main intersection and can result in reduced number of traffic signal phases and improved intersection operations and safety. Realizing this advantage, the Hyderabad traffic police has replaced several signalized intersections in the city with MUTIs. However, the case-specific potential of such MUTIs in the context of lane-free, heterogeneous traffic is yet to be explored and a proper set of guidelines for implementation of such unconventional intersections is lacking. This paper aims to understand the gap in detail and provides a direction for assessing the applicability of MUTI along with implementation guidelines with reference to a case study. The traffic impacts using certain key performance indicators are highlighted for different types of MUTIs and some recommendations and future scope of study are provided.

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Traffic Impact Analysis of Unconventional Median U-Turn Intersection: Case Study of an Intersection in Hyderabad, India

  • Srinivas Ganji,
  • Kinjal Bhattacharyya,
  • Shyamsunder Akula,
  • Leela Raj Kumar Guptha Konagalla,
  • Sai Teja Tata

摘要

Median U-Turn Intersection (MUTI) is an alternative to conventional signalized intersections that replace the direct right turns and/or the through movements at the intersection by facilitating these movements indirectly using U-turns in a wide median. This reduces the number of potential conflict points at the main intersection and can result in reduced number of traffic signal phases and improved intersection operations and safety. Realizing this advantage, the Hyderabad traffic police has replaced several signalized intersections in the city with MUTIs. However, the case-specific potential of such MUTIs in the context of lane-free, heterogeneous traffic is yet to be explored and a proper set of guidelines for implementation of such unconventional intersections is lacking. This paper aims to understand the gap in detail and provides a direction for assessing the applicability of MUTI along with implementation guidelines with reference to a case study. The traffic impacts using certain key performance indicators are highlighted for different types of MUTIs and some recommendations and future scope of study are provided.