Abstract: Based on analyzing the characteristics of real-time traffic information (RTTI) and navigation data model, we point out the difficulties to express RTTI in hierarchical road network. We focus on the fusion method for RTTI and hierarchical road network. Firstly, the relationship between RTTI and logical road network is established by RTIC. Then, we propose the fusion method based on the relationship of multi-link in the upper and lower layer. Lastly, the results demonstrate that the method achieves multi-scale representation of real traffic map in mobile terminal and meet the requirement of dynamic navigation.