Intersection Vehicle Acceleration Guidance for Congestion Relief
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Solution Overview
Problem
Current navigation systems fail to optimize vehicle acceleration at intersections, leading to sub-optimal throughput and increased energy consumption due to reliance on human decision-making and varying vehicle capabilities.
Innovation Solution
A congestion control system that coordinates vehicle acceleration by forming ad hoc clusters of vehicles using wireless communication, determining suitable acceleration parameters based on the movement of other vehicles, and providing real-time guidance to vehicles through intersections, ensuring safe distances and efficient passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drivers rely on their experience to decide when and how fast they should accelerate at intersections, then drivers can make decisions based on limited visible information, but fewer vehicles move through the intersection per unit of time compared to optimal capacity
Solution Approach 1:
The system performs preliminary actions by calculating optimal acceleration profiles and providing advance warnings to drivers before the traffic light turns green. This allows drivers to prepare and execute acceleration at the precise moment when conditions are optimal, maximizing throughput without compromising safety
Solution Approach 2:
The system implements feedback by continuously monitoring the positions, speeds, and distances of multiple vehicles, then using this information to calculate and communicate optimal acceleration instructions back to drivers. This closed-loop control enables the system to adapt to real-time conditions and coordinate vehicle movements to maximize intersection capacity
2Productivity
If drivers leave more space than necessary between vehicles due to limited information, then safety is maintained, but the throughput of vehicles through the intersection is reduced
Solution Approach 1:
The system acts as an intermediary by providing drivers with additional information about vehicles ahead and optimal acceleration timing. This intermediary information allows drivers to reduce following distances safely while maintaining coordinated spacing that maximizes throughput
Solution Approach 2:
The system replaces the mechanical/physical limitation of driver vision and reaction time with an electronic information system that provides precise timing and positioning data, enabling safer and more efficient vehicle spacing
3Productivity
If vehicles accelerate at different rates due to differences in torque and vehicle capability, then each vehicle operates within its performance limits, but coordination between vehicles is lost and throughput is reduced
Solution Approach 1:
The system applies local quality by providing customized acceleration instructions tailored to each vehicle's specific capabilities, position, and situation. Each driver receives personalized guidance that accounts for their vehicle's torque characteristics and current state, enabling optimal performance for each vehicle type while maintaining overall coordination
Solution Approach 2:
The system performs preliminary characterization of each vehicle's capabilities and calculates customized acceleration profiles in advance, allowing vehicles with different torque and performance characteristics to be coordinated effectively through the intersection
Data Source
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AI summary
To control vehicular congestion at intersections, a method includes detecting a group of two or more vehicles stopped at an intersection regulated by a traffic light, where for each of the vehicles in the group, movement through the intersection in response to a change in a state of the traffic light is affected by movement of at least one other vehicle in the group. The method further includes determining a time when the state of the traffic light changes to allow the group of vehicles to start moving through the intersection, determining acceleration parameters for a certain vehicle in the group in view of potential and/or actual movement of the other vehicles in the group through the intersection, and providing guidance to a device operated by a driver of the certain vehicle regarding the determined acceleration parameters, in accordance with the determined time.