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Variable Speed Limit Analysis on the Highway in Istanbul
Zekai Karagoz
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DOI:10.17265/2328-2142/2025.02.004
Survey and Planning Department, ISBAK Inc., Istanbul 34418, Turkey
Application of variable speed limits (VSL) is gradually increasingly implemented especially on highways. As a result of conducted studies and implementations, it is observed that the variable speed limits have reduced the number of car accidents as well as proved positive results in terms of delays and environmental factors. Purpose of this study is to develop an algorithm for VSL application that is considered to be applied on Istanbul D100 highway and to assess the effects of application. Algorithm that is developed for VSL is a different VSL algorithm and compared with the constant speed system. According to obtained results, when the proposed system is compared to current system, it is observed that the number of delays and average stops are reduced %30 and %40 respectively and also emissions reduced at the rate of %12.
Variable speed limit, speed harmonization, VCL algorithm.
Journal of Traffic and Transportation Engineering 13 (2025) 80-85
doi: 10.17265/2328-2142/2025.02.004
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