研究目的
To propose formulas for evaluating structural safety of road network segments and set optimization problems for traffic light cycles to improve traffic safety and efficiency.
研究成果
The proposed formulas and optimization approaches provide a basis for improving traffic safety and efficiency at intersections. Future work should focus on refining saturation flow calculations and incorporating dynamic traffic intensity variations.
研究不足
The approach is preliminary and may not account for all real-world variables such as varying driver behavior, vehicle fleet differences, and site-specific conditions. The transferability of regression models is limited, and computational methods require further development for dynamic intensity variations.
1：Experimental Design and Method Selection:
The paper proposes a theoretical approach using formulas for structural safety evaluation and sets combinatorial optimization problems for traffic light cycle structure and parameters. It involves defining safety indicators based on singular points (intersection, merging, separation) and using microscopic models for traffic flow simulation in computational experiments.
2：Sample Selection and Data Sources:
The example uses the crossroad of Profsoyuznaya and Obrucheva streets in Moscow, with specific traffic directions and phases. Data sources include empirical studies and simulation models referenced in the literature.
3：List of Experimental Equipment and Materials:
No specific equipment or materials are mentioned; the focus is on computational and theoretical methods.
4：Experimental Procedures and Operational Workflow:
Steps include defining safety indicators, setting up optimization problems, and performing computational experiments to evaluate different phase separation schemes and traffic intensities.
5：Data Analysis Methods:
Analysis involves comparing structural safety indices, calculating saturation flows using normative formulas, and using microscopic models for simulation-based evaluations.
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