This paper investigates the cold chain logistics network design in first mile for fresh agricultural products with government subsidy, involving capacity, location of storage facilities, and transportation from production areas to facilities after harvest. A bi-level programming model is formulated considering quality degradation products. Based on proposition KKT conditions, a solution method ...

Traditionally, minimization of the total travel time spent by the passengers in the system is the most preferred objective while planning transit systems. To satisfy this objective, forecasted travel demands between zones and characteristics of the available fleet are taken into account, and at the end of the planning process, optimum frequencies of each transit lines are identified. Unfortunat...

The multi-level programming problem is defined as an n-person nonzero-sum game with perfect information in which the players move sequentially. The bi-level linear case is addressed in detail. Solutions are obtained by recasting this problem as a standard mathematical probram and appealing to its implicitly separable structure. The reformulated optimization problem is linear save for a ~ompleme...