Hello! my sister is delivering phone books.we are trying to figure out how to plan her route.?

Hello! my sister is delivering phone books.we are trying to figure out how to plan her route.?

we get a list of cities by zip code.on each list that is separated by zip code,we get about 30 addresses.we know how to "map quest" it.we need to know how to figure out what address to start with and what address to put in next,then next etc.im guessing what we need is a detailed street map for each city(michigan)where would i find such a map?thanks!alot!!!!

edit-some examples of the cities are troy,hazel park,berkely.....Hello! my sister is delivering phone books.we are trying to figure out how to plan her route.?
get a gps it will help a lot in where you want to go if its in a town or city