A Geometric Design of Traffic-Light Roads Crossing Using the Continuous Flow Intersections Methodology to Reduce Points of Primary Conflicts Caused by Left Turns

Betsi Chuco, Carlos Pérez, Manuel Silvera, Fernando Campos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The continuous flow intersections (CFI) increase the operational capacity of road systems with congestion problems, by using shared lanes located at the access points before the intersection. However, the CFI presents road safety risks that increase the likelihood of vehicle collision. This article proposes a geometric design composed of raised delineators at a traffic-light intersection, whose objective is to eliminate the points of primary conflicts caused by the left turns of the vehicles. To do this, a study was conducted to identify the different maneuvers present in a wide cross-type intersection in a commercial area located in the city of Lima. A total of 3219 vehicles was collected, of which 561 vehicles turned left demonstrating the high density of this type of maneuver. The effectiveness of the proposed design is validated using a microsimulation in the Vissim program. The results show that it was reduced from 58 to 8 points of conflict, increasing operational capacity by 34.97%. Finally, the risks caused by CFI decreased by 83%.

Original languageEnglish
Title of host publicationProceedings of the 5th Brazilian Technology Symposium - Emerging Trends, Issues, and Challenges in the Brazilian Technology
EditorsYuzo Iano, Rangel Arthur, Osamu Saotome, Guillermo Kemper, Reinaldo Padilha França
PublisherSpringer Science and Business Media Deutschland GmbH
Pages553-562
Number of pages10
ISBN (Print)9783030575472
DOIs
StatePublished - 2021
Externally publishedYes
Event5th Brazilian Technology Symposium, BTSym 2019 - Campinas, Brazil
Duration: 22 Oct 201924 Oct 2019

Publication series

NameSmart Innovation, Systems and Technologies
Volume201
ISSN (Print)2190-3018
ISSN (Electronic)2190-3026

Conference

Conference5th Brazilian Technology Symposium, BTSym 2019
Country/TerritoryBrazil
CityCampinas
Period22/10/1924/10/19

Keywords

  • Conflict points
  • Continuous flow intersection
  • Operational capacity
  • Traffic-light roads

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