Hi, how shoul be the best approach to a network problem, that, before solving network, i could determine if i will go, on foot, by motocylce, by car and by truck. Each of those types of vehicles, means a diferent time to pass a intersection or node, and a different speed.
foot
speed - 4km/h
time need to pass obstacle A - 30s
car
speed - 40km/h
time need to pass obstacle A - 2 min
truck
speed - 30km/h
time need to pass obstacle A - -1 min
van
speed - 35 km/h
speed - 40km/h
time need to pass obstacle A - 3 min