It changed the energy, we do the elements of electronic commerce, are in the information, information flow around the change and control flow, and information is not weight, no marginal.
The algorithm is to minimize total travel time in the whole network by assigning traffic flow to links that have the lowest marginal link travel time at every time period.
该算法通过在每个时段把车流分配至边际行程时间最小的路段上，从而最小化交通系统内车辆的总运行时间。
3
The methods of cash flow, marginal analysis are put forward to calculate the economic reserves in oilfields and an index system is established for the evaluation.