Its a great service to use since its all localized to one website if you are looking for information, and its pretty much acceptable everywhere you would need it. The site is slightly dated however.
You could go to the main office of the MTA Bus Station and ask them how to read it. Maybe some one else there knows how to read it. But if not usually there is a map key on all maps. At least somewhere. They can really help you and let you know what is what on a map.
Go to your local bus station and sometimes there are stalls and people will be selling M.T.A bus maps. Once you obtain a M.T.A MAP it will show you a lot of routes which you can use.
You can get a free MTA map from several websites, they usually provide them for free and as a download for convenience. You may also be able to get them from government authorities.
You can just go to mta.com and you will find maps for wherever you are going just click on the link that best suite you. Find different MTA maps on this site.
Egged is the official bus service in Jerusalem. On their website, you can find bus route changes for Jerusalem. They also have a bus routes map, but it is not complete and not updated. On Answers.com there is an entry for Egged bus lines, including a detailed list of Jerusalem lines and their destinations. See the Related Links for the info. For an unofficial updated map of the most useful bus routes in Jerusalem, see the Related Links.
The types of routes listed on a map are ultimately dependent on the type of map possessed. For example, a map of a bus system's service area will usually have a route of the entire area the buses travel as well as individual bus routes. The same goes for most airlines, which detail cities that flights travel to and from.
MTA Subway Maps have limited information about major landmarks. Many landmarks are not shown, however, and you would be aided by referencing other maps along with the subway map.
There are several sites online that provide a map that one can use. Example of this is the official MTA map that shows all the subway routes in New York City.
There is a trustworthy website I can offer it is entitled: http://www.mta.info/nyct/maps/submap.htm This is a trustworthy site because it is the official New York subway map website. This map is clear, detailed and color coordinated which is useful.
The NY transit system can be found if you go to MTA and get "The Weekender". This helps you find out what work is planned from Friday night to early Monday morning on the subway system. The MTA copied The Weekender and adding mobile apps for use on iPad, iPod Touch, and iPhone. MTA stands for Metropolitan Transportation Authority in New York city.
You will find a Greyhound bus route map at the related links, click on 'Route Maps'.
You can find a bus map of London on the Transport for London official website. On this website, you can view maps, see timetables, and search for a tube station.