There are a large number of blind people living in our country. Although there are many tactile pavings in China,but the basic tactile pavings construction is not satisfactory.The construction workers often don't consider the practicality of the tactile tracks when laying the tactile pavings. As a result, a large part of the tactile pavings have the problems of unreasonable design, being damaged or being cut off by obstacles such as trees. The unresaonable design of tactile pavings not only can't help the blind , but also seriously threatened the safety of the blind.

Tactile Paving Printer is a 3D printed driverless vehicle specially designed for tactile pavings' repairs. It uses cement as a basic material to maintain, repair, simplify or optimize tactile pavings with different problems. In addition, Tactile Paving Printer can also be used to maintain sidewalks in daily life. It can not only help city managers improve the blind track system, but also save a lot of labor cost caused by the maintenance of blind roads, and the technology is feasible.