Vehicle Traffic Coordination for Safe Junction Maneuvers
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Solution Overview
Problem
Current traffic management systems for autonomous and semi-autonomous vehicles face challenges in coordinating the movement of multiple vehicles, especially at complex locations like motorway junctions, leading to safety hazards and inefficiencies, due to their independent decision-making nature, which is difficult to regulate and lacks interoperability standards.
Innovation Solution
A vehicle management system comprising a receiver, processor, and transmitter that senses kinematic parameters and event data to determine required actions and transmit instruction signals to vehicles, enabling coordinated movement and improved safety and efficiency by creating gaps and adjusting speeds to facilitate smooth traffic flow and charging operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If independent vehicle decision-making is used, then vehicle autonomy is achieved, but safety hazards increase and coordination becomes difficult
Solution Approach 1:
A central traffic management system acts as an intermediary between autonomous vehicles, receiving data from vehicles and issuing coordinated control commands. This mediator enables autonomous vehicles to operate safely by providing centralized oversight and coordination, resolving the contradiction between vehicle autonomy and safety through a mediating control layer.
2Ease of operation
If independent vehicle actions are taken, then vehicle independence is maintained, but regulation becomes extremely difficult
Solution Approach 1:
The traffic management system continuously receives feedback from autonomous vehicles about their state, position, and intentions. This feedback loop enables the central system to monitor and regulate independent vehicles dynamically, maintaining vehicle independence while enabling effective regulation through continuous information exchange and adaptive control.
3Productivity
If vehicles approach junctions at high speed, then travel time is reduced, but safe maneuvering becomes impossible
Solution Approach 1:
The traffic management system performs preliminary actions by pre-coordinating vehicle movements and issuing control commands before vehicles reach junctions. This advance coordination allows high-speed travel by preparing safe maneuvering sequences in advance, resolving the contradiction between speed and safety through proactive control.
4Reliability
If thinking distance is applied for safe stopping, then safety is maintained, but higher speeds and densities cannot be achieved
Solution Approach 1:
The centralized traffic management system acts as a mediator that coordinates stopping actions across multiple vehicles. By managing brake applications and speed reductions centrally, the system maintains safe stopping distances while enabling higher overall speeds and densities through coordinated traffic flow control, eliminating the need for excessive individual thinking distances.
Data Source
AI summary
The present invention concerns a vehicle management system for controlling movement of a plurality of vehicles along a pathway at a current geographic location of a transport network, the vehicle management system comprising: a receiver configured to: receive sensed kinematic parameters of the plurality of vehicles at the current geographic location; and receive event data relating to the occurrence of an event concerning the movement of the plurality of vehicles, a processor configured to: determine required kinematic parameters of at least one of the plurality of vehicles in order to respond to the event; determine, based on the sensed kinematic parameters and the required kinematic parameters, one or more actions to be taken by the one or more of the plurality of vehicles which enable the required kinematic parameters to be achieved; and generate one or more instruction signals for the one or more vehicles to instruct the one or more actions to be taken; and a transmitter configured to transmit the one or more instruction signals to the respective one or more vehicles to enable the one or more actions to be implemented.