Abstract:With the development of intelligent transportation and smart road engineering construction, the higher requirements have been put forward for the design of smart roads, especially the collaborative design of intelligent transportation facilities. Based on the practical project experience, the current situation of transportation collaborative design is briefly introduced. The key engineering points include the multi-pole integration, multi-box integration, power distribution and networking, and the workflow includes the demand research, formulation of design principles and preparation of design documents. The key points and workflow of collaborative design for various facilities of smart roads are analyzed and discussed, which provides the references for the design of smart roads.