Vehicle Route Navigation Using Real-Time Traffic Data
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Solution Overview
Problem
Vehicles lack effective methods to obtain and analyze information about lane travel and lane departure, and to control maneuvers when deciding whether and how to leave a roadway lane based on varying traffic loads.
Innovation Solution
A system that uses a computer to determine if a vehicle's rate of travel exceeds a threshold, plans a maneuver to depart from the route segment based on data from other vehicles, and instructs the vehicle to execute that maneuver, potentially modifying its route or finding a parking location in a less congested area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vehicles stay in predetermined routes, then route coverage is maintained, but traffic congestion increases and travel efficiency decreases
Solution Approach 1:
The system pre-calculates multiple alternative routes and stores them before traffic conditions change. When congestion is detected on the current route, the vehicle can immediately switch to a pre-planned alternative route without complex real-time calculations, thus improving travel efficiency while maintaining manageable system complexity
Solution Approach 2:
The system continuously monitors traffic load on route segments and uses this feedback to dynamically adjust route selections. When traffic load exceeds thresholds, the system automatically selects alternative routes, creating a closed-loop control that improves travel efficiency based on real-time conditions
2Loss of time
If vehicles depart from route segments based on traffic load, then travel time is reduced, but lane departure control and safety are compromised
Solution Approach 1:
The system dynamically adjusts the vehicle's departure decision based on real-time traffic conditions, vehicle state, and environmental factors. Instead of fixed departure rules, the system continuously evaluates whether to depart, when to depart, and how to depart, improving both time efficiency and control reliability through adaptive decision-making
Solution Approach 2:
The system changes multiple parameters simultaneously when departing from a route segment, including trajectory, speed, acceleration, and lane position. By coordinating changes in these parameters, the system ensures safe and reliable lane departure while minimizing time spent in congested areas
3Adaptability or versatility
If each vehicle implements different departure maneuvers, then individual vehicle optimization is achieved, but overall traffic flow and coordination are reduced
Solution Approach 1:
The system merges individual vehicle departure decisions with overall traffic flow considerations. By coordinating maneuvers across multiple vehicles and considering the collective impact on traffic flow, the system achieves both individual vehicle optimization and improved overall traffic efficiency, preventing the chaos that would result from completely independent vehicle decisions
Data Source
AI summary
A computer determines that a rate of travel value for a route segment being traversed by a first vehicle exceeds a predetermined threshold. A maneuver is planned for the first vehicle to depart from the route segment based on collected vehicle operating data from one or more second vehicles previously traversing the route segment. The first vehicle is instructed to execute the maneuver to depart the route segment.