Pet Care, Toys, Supplies and Products for Animals Design Red Line Cat-Overpass by YeQuan Liu Stray cats are unable to follow human rules of traffic. Once those poor cats break into highway of oncoming cars, it is possible for them to get hurt or killed. Designers can improve the design of footbridge to avoid the tragedy repeating.According to the habits of cat, designers can install a secure channel, namely Cat-Overpass, in the bottom of the footbridge and they also induce the stray cats to go through the channel. The smell of cat grass will induce the cat to find the right and safe channel which is Cat-Overpass.