Abstract:The concept of tolerance design advocates the function of people-oriented road fault tolerance and error correction, and is mainly used in the design of expressway side strip. At present, the domestic studies are relatively limited in the tolerance design of intersections, signs and markings, crash barriers and construction safety covered by the urban roads. Therefore, by analyzing the current design situation of urban roads in China, the technical advices based on the tolerance concept are proposed from the aspects of the construction zones of urban road, the urban trunk roads and the low-flow traffic roads in order to provide the practical design references for strengthening the safety of urban.