a letter to the manager of the public transportation services

Dear sir/madam
I am writing to complain about a problem of the local public transportation. In the last week, I should go to the city center to work.But I didn't get there on time.Because I waited over half an hour at the bus station. The bus had not come yet. Because of this lots of times I have to waste much more time waiting for a bus,while when it comes it is usually crowded with a large number of passengers. On the other hand, In some stations, only bus numbers are displayed. There are not diagrams of bus routes at the stops. Even the locals may not be able to figure out the various bus routes.
I suggest you should take some steps to improve the quality of the service.
First of all, There are not enough buses in our city.So It is very necessary that run extra buses during the rush-hour. It is dangerous when the bus crowded with too many passengers. Secondly,the bus numbers and the deagram of the routes must be displayed clearly at the bus stops.
Therefore ,I would appreciate very much if you could consider to solve these troubles.
yours ....

a letter to the manager of the public transportation services

Dear sir/madam ，
I am writing to complain about a problem about the local public transportation.

Last week I wanted to go to the city center to work last week. I had already waited over half an hour at a the bus station, but the bus did not come yet. Sometimes I have to spend much more time waiting for a bus, on which it is usually crowded with a large number of passengers. On the other hand, In at some stations, only bus numbers are displayed. There are not diagrams of bus routes at the stops. The locals may not be able to figure out the various bus routes.
I think you should take steps to improve the service.
First of all, There are so few buses in our city. It is very necessary that to run extra buses during the rush-hours.cause it is dangerous if the bus it is crowded with too many passengers on the bus. The Second, the bus numbers and diagrams must be displayed clearly at the bus stops.
Therefore ,I would very much appreciate it very much if you would solve these issues.
yours ....