Road-vehicle Communication System for Reverse-way Driving Warning
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Solution Overview
Problem
Existing road-vehicle communication systems are ineffective in preventing reverse-way traveling accidents on toll roads, as they provide warnings to all vehicles, causing annoyance to forward-traveling drivers and failing to specifically target vehicles likely to be traveling in reverse on one-way roads.
Innovation Solution
A road-vehicle communication system with first and second roadside apparatuses at entrance and exit ramps, respectively, and an administration device that assesses entry gate pass information to provide reverse-way traveling warnings only to vehicles not acquiring this information, thereby targeting vehicles likely to be traveling in reverse on one-way roads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If entry information is transmitted to all vehicles passing through the vicinity of the roadside apparatus, then reverse-way traveling prevention warning is provided, but forward-traveling drivers are annoyed
Solution Approach 1:
The system applies different warning strategies to different vehicles based on their entry information status. Vehicles with entry information (forward travelers) receive no warning, while vehicles without entry information (potential reverse travelers) receive warnings. This localized differentiation resolves the contradiction by making warnings effective only where needed.
Solution Approach 2:
Instead of warning all vehicles and hoping to filter out false alarms, the system inverts the approach by specifically identifying vehicles that need warnings through the absence of entry information. This inversion makes the warning system both more effective and less annoying.
2Reliability
If warnings are provided to all vehicles, then reverse-way traveling vehicles are warned, but forward-traveling vehicles receive unnecessary warnings
Solution Approach 1:
The system extracts the key identifying feature (entry information) that distinguishes forward-traveling vehicles from potential reverse travelers. By checking for the presence or absence of this specific information, the system accurately identifies which vehicles need warnings without generating false alarms for forward travelers.
3Reliability
If entry gate pass information is checked at exit ramp, then reverse-way traveling vehicles are identified, but system complexity increases
Solution Approach 1:
The system leverages the existing entry gate pass information that vehicles already possess and carry. Instead of requiring a complex new tracking system, the solution uses the vehicles' own stored information to identify reverse travelers, thereby maintaining simplicity while achieving high reliability.
Data Source
AI summary
A road-vehicle communication system warns or gives caution to a vehicle traveling in a reverse way direction and may also give warning to vehicles traveling in a correct direction. The road-vehicle communication system includes a first roadside apparatus at an entrance gate that gives entry gate pass information indicating that a vehicle passing a communicative area has entered a toll road. A second roadside apparatus at an exit ramp acquires any given entry gate pass information from a passing vehicle. An administration device judges whether or not the entry gate pass information is acquired from the passing vehicle. If the entry gate pass information is not acquired, the second roadside apparatus provides the vehicle with reverse-way driving warning information for warning the vehicle that the vehicle is traveling in the reverse direction.