Connectivity is an important index to evaluate the performance of road network, which plays an important role in urban transportation planning, design, and management. The current connectivity studies often focus on the physical structure of the road network, and lack of analysis of the status of traffic flow. In fact, traffic flow status affects the connectivity of road network, and different traffic flow status leads to different connectivity indices for a road network. Therefore, this paper will modify the traditional model on connectivity of road network considering traffic flow status. First, the paper will select speed as the main parameter to reflect the traffic flow status and build a satisfaction model on vehicle driver speed on the basis of survey; Second, the paper will analyze the connectivity of roads and intersections and propose a modified model on connectivity of road network considering traffic flow status on the basis of the traditional connectivity research, which improves the applicability of road network connectivity. Third, the paper will verify the validity of the modified model by examples. In the end, the paper will give the suggestions to improve the traffic performance of the road network through the traffic management according to the modified model.
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