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Study on comfortable distance based car-following model with trajectory data

Published: 30 July 2020 Publication History

Abstract

Car following models usually assume that individual drivers tend to keep a minimum safe distance from the vehicle in front of themselves, or tend to drive at a desired velocity. Through the analysis of NGSIM data, it is found that the distance between leader car and follower car is often not the minimum safe distance when the driver maintains similar velocity with the leading vehicle. Moreover, due to miss perception of leading vehicle's velocity, the following vehicle's desired velocity is not equal to the leading vehicle's, especially when the leading vehicle's velocity changes greatly. In this paper, the comfortable driving distance is proposed to replace the minimum safe distance in the traditional car-following model, and the calculation method of the desired velocity is given. Logistic function was used to improve the linear function in the spring-damper car-following model, which fit the changing of driving velocity of follower vehicles better. Simulation results are provided to validity the model developed in this paper.

References

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Munigety C R. Conformity and stability analysis of a modified spring-mass-damper system dynamics-based car-following model[J]. International Journal of Modern Physics B, 2019(4):1950025.
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cover image ACM Conferences
EM-GIS '19: Proceedings of the 5th ACM SIGSPATIAL International Workshop on the Use of GIS in Emergency Management
November 2019
103 pages
ISBN:9781450369657
DOI:10.1145/3356998
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Association for Computing Machinery

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Publication History

Published: 30 July 2020

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Author Tags

  1. car-following model
  2. comfortable space headway
  3. desired velocity
  4. logistic function

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  • Research-article

Funding Sources

  • National Key R&D Program of China
  • National Natural Science Foundation of China

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SIGSPATIAL '19
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Overall Acceptance Rate 30 of 54 submissions, 56%

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