Problem, research strategy, and findings New transportation options like ride-hail can expand accessibility without the costs of car ownership. Ride-hail’s potential is particularly salient for lower-income zero-car households. We used interviews a national (U.S.) survey to examine how why travelers in United States use ride-hail. Survey interview responses provided temporal snapshot thus refle...

optimization is an important methodology for activities in planning and design. the transportation designers are able to introduce better projects when they can save time and cost of travel for project by optimization methods. most of the optimization problems in engineering are more complicated than they can be solved by custom optimization methods. the most common and available methods are he...