Road Traffic Reservation Speed Curve for Intersection Signal Timing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing traffic signal control systems struggle to efficiently manage increasing traffic congestion, failing to fully utilize time and space resources at intersections, leading to inefficiencies, increased energy consumption, and prolonged waiting times for vehicles.
Innovation Solution
A method and system for implementing road traffic reservation passage, where vehicles determine a route reservation speed curve based on route planning information, send it to a traffic dispatch center, and receive a timing scheme for intersection signal lights and vehicle speed guidance data, allowing them to adjust their speed according to the driving speed control curve to optimize passage through intersections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed period or variable period control method is used, then traffic flow can be controlled at intersection, but passing efficiency of intersections cannot be optimized sufficiently and energy consumption increases
Solution Approach 1:
The system performs preliminary route reservation and speed curve determination before vehicles reach intersections. Vehicles submit route planning information in advance, and the traffic dispatch center calculates optimal speed curves and timing schemes beforehand, allowing vehicles to pass through intersections efficiently without unnecessary waiting or stopping.
Solution Approach 2:
The system dynamically adjusts speed curves and signal timing based on real-time traffic conditions, vehicle positions, and route requirements. The speed curve is not fixed but adapts to changing traffic scenarios, enabling optimal passing efficiency while reducing energy consumption through smooth acceleration and deceleration profiles.
2Loss of time
If traditional traffic signal control is used, then intersections can be managed, but time and space resources are not fully utilized leading to prolonged waiting times
Solution Approach 1:
The system implements continuous feedback loops where vehicles report position and speed data, the traffic dispatch center processes this information, and adjusts speed curves and signal timing in real-time. This feedback mechanism ensures optimal utilization of intersection resources by coordinating vehicle arrivals with green light phases, minimizing waiting times.
Solution Approach 2:
The system changes key parameters such as speed curve profiles, signal timing durations, and lane assignments based on real-time traffic conditions. By dynamically adjusting these parameters, the system maximizes the utilization of time and space resources at intersections while minimizing vehicle waiting times.
3Productivity
If route reservation speed curve is determined and sent to traffic dispatch center, then vehicle passage can be optimized, but system complexity increases
Solution Approach 1:
The traffic dispatch center serves multiple functions: receiving route planning information, calculating speed curves, determining signal timing schemes, and coordinating with multiple intersections. By consolidating these functions in a single centralized system, the patent reduces overall system complexity while maintaining high vehicle passage efficiency through coordinated control.
Data Source
AI summary
Provided are implementation method and system for road traffic reservation passage, and electronic device. The method includes: determining path reservation speed curve according to path planning information of vehicle, which includes driving data of the vehicle passing through intersection in planned path; the vehicle sending the path reservation speed curve to traffic scheduling center; the traffic scheduling center classifying the received path reservation speed curve according to intersection information to obtain the classification result, and sending it to signal control calculation unit of the corresponding intersection; the signal control calculation unit determining intersection signal lamp timing scheme and vehicle speed guide data according to the classification result and sending same to the vehicle; the vehicle determining driving speed control curve according to the received intersection signal lamp timing scheme and the vehicle speed guide data, and guiding the passing of the vehicle according to the driving speed control curve.