Traffic congestion is the top problem facing the city's transportation infrastructure, a recent survey of 1,700 residents found.

This paper considers a minimum-cost network flow problem in a bipartite graph with a single sink. The transportation costs exhibit a staircase cost structure because such types of transportation cost ...

For transportation stakeholders, that's a big problem. Now, a growing number of them are shifting their strategies to try to capture an audience that's often left out of the conversation: everyday ...