First Responder Transit Alert System Using GPS Velocity Tracking
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Solution Overview
Problem
Current first responder alert systems, relying on sirens, lights, and horns, often provide insufficient warning and information to drivers in the path of an approaching vehicle, leading to delayed reaction times and potential hazards due to distractions or traffic conditions, which can impede the timely arrival of first responders at emergency scenes.
Innovation Solution
A system that sends alert notifications to personal computing devices of drivers in the forward path of a first responder vehicle, using GPS coordinates and velocity calculations to determine which vehicles are within a configurable threshold distance, allowing for timely and informed path clearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional alert systems use sirens, lights, and horns to alert drivers, then drivers can be notified of approaching first responder vehicles, but drivers often do not notice these indicators until the vehicle is in close proximity, resulting in insufficient warning time
Solution Approach 1:
The system performs preliminary action by sending alert notifications to drivers' portable computing devices before the first responder vehicle reaches close proximity. The notification system identifies drivers in the vehicle's path and sends advance warnings, allowing drivers to clear the path before the vehicle arrives, thus resolving the insufficient warning time problem
Solution Approach 2:
The system introduces an intermediary communication system that mediates between the first responder vehicle and drivers. Instead of relying solely on direct sensory indicators (sirens, lights), the system uses electronic notifications as an intermediary channel to convey alert information to drivers in advance, improving awareness before the vehicle approaches
2Object-affected harmful factors
If traditional alert systems rely on audible and visual indicators, then drivers can be warned of approaching vehicles, but drivers engaged in distracting activities may not notice these indicators until it is too late to clear the path safely
Solution Approach 1:
The electronic notification system acts as an intermediary that delivers alerts directly to drivers' portable computing devices, bypassing the need for drivers to actively monitor traditional sirens and lights. This ensures drivers receive alerts even when engaged in distracting activities, improving the reliability of path clearance
Solution Approach 2:
The system incorporates feedback mechanisms by receiving location and velocity data from the first responder vehicle, identifying affected drivers, and sending targeted notifications. This closed-loop feedback ensures alerts are delivered to the right drivers at the right time, compensating for driver inattention
3Loss of information
If traditional alert systems provide minimal information to drivers, then the system remains simple, but drivers lack sufficient information to determine the best course of action to clear the path
Solution Approach 1:
The alert system segments information delivery by sending targeted notifications only to drivers whose paths intersect with the first responder vehicle's path. The system divides the road network into affected and unaffected zones, providing detailed information only to relevant drivers, thus managing complexity while maximizing information utility
Solution Approach 2:
The system applies local quality by providing enhanced information specifically to drivers in the vehicle's path rather than all drivers. The notification includes localized details such as the vehicle's current location, direction of travel, and recommended actions, giving drivers precise information needed for their specific situation without overwhelming the overall system
4Ease of operation
If traditional alert systems activate only when the first responder vehicle is nearby, then the system remains simple to operate, but drivers have insufficient time to react and clear the path
Solution Approach 1:
The system performs preliminary action by calculating the first responder vehicle's trajectory and identifying drivers who will be in the path before the vehicle reaches them. Notifications are sent in advance based on these pre-calculations, providing drivers with sufficient reaction time while maintaining automated operation that remains simple to activate
Solution Approach 2:
The system uses dynamic calculations of vehicle velocity and position to determine when to send notifications. The activation threshold is dynamically adjusted based on the vehicle's speed and the calculated time needed for drivers to clear their paths, allowing the system to provide adequate warning time while maintaining simple automated operation
Data Source
AI summary
A first responder transit alert system and method cause notifications to be sent to wireless personal computing devices (PCDs) in vehicles traveling in the forward path of the first responder vehicle traveling to an emergency site. A processor of the system performs a process comprising: determining whether a wireless alert signal has been broadcast by a wireless device of the first responder vehicle; if so, receiving and processing geographical coordinates of multiple positions of PCDs traveling in vehicles in one or more lanes of a highway system and geographical coordinates of multiple positions of the wireless device of the first responder vehicle to determine velocities of the PCDs and of the wireless device; processing the positions and velocities to determine a subset of the PCDs to which to send a wireless alert notification; and causing the wireless alert notification to be sent to the PCDs of the subset.