Please provide constraints like use in LINGO or Excel Solver

City Club Company has identified 5 primary pickup and drop locations for cab riders in New York City. In an effort to minimize travel time and improve customer service and utilization of the company's feet of cabs management would the cab drivers to take the shortest route between locations whenever possible. Using the network of roads and streets shown in the network map, develop a linear programming model to find the route a driver beginning at location 1should take to reach location 4? The travel times in minutes are shown on the areas of network. You don't need to use LINGO or Excel Solver to get the solution, but clearly define the decision|variables, the object function and the constraints in the space below. Do not use any undefined decision variables in the object function and the constraints. 4 2 a G 4 3 4 5 3 3