A study on the impact of saturation flow at signalized intersections in Nha Trang city

DOI: https://doi.org/10.55228/JTST150108

Keywords

Dòng bão hòa, Lưu lượng xe, Mô hình phi tuyến, Nút giao đèn tín hiệu, Ùn tắt giao thông

Abstract

Saturation flow plays an important role in evaluating the performance of signalized 
intersections, with clear differences across regions. As traffic demand increases, signal design 
based on saturation flow has become an important research topic. However, most studies to 
date have primarily focused on large cities such as Hanoi and Ho Chi Minh City. Therefore, 
this study focuses on assessing the impact of saturation flow at signalized intersections in 
Nha Trang city. The study analyzes the relationship between saturation flow and lane width 
through surveys at nine intersections during peak hours. The second-degree nonlinear model 
shows a high fit with real data. The application of this model helps improve traffic flow. The 
research results provide a foundation for improving signal design in Nha Trang and other 
areas with similar traffic conditions. 

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