â¢ This product is to be applied ONLY to the OUTSIDE of the rear window, not to any other window of the vehicle, as it may obstruct visibility and create a safety hazard. â¢ Install this product only in strict accordance with the provided instructions. Installing this product may reduce or impair visibility. This product is to be applied ONLY to the OUTSIDE of the rear window, not to any other window of the vehicle, as it may obstruct visibility and create a safety hazard. â¢ Install this product only in strict accordance with the provided instructions. Installing this product may reduce or impair visibility.
A UAS traffic management (UTM) system for low-altitude airspace may be needed, perhaps leveraging concepts from the system of roads, lanes, stop signs, rules and lights that govern vehicles on the ground today, whether the vehicles are driven by humans or are automated.
1 Traffic collision avoidance system (TCAS), which actively interrogates the transponders of other aircraft and negotiates collision-avoidance tactics with them in case of a threat. 2  TCAS systems are relatively expensive, and tend to appear only on larger aircraft. Obstacle Collision Avoidance System is a ground based system that uses a low powered radar mounted on or near the obstacle. 2  The radar detects aircraft in the proximity of the obstacle and firstly warns aircraft via flashing medium intensity lights and secondly warns aircraft of the obstacle via a VHF broadcast.