The best way to know which bus to take in a particular region is to consult bus line and route information available on the relevant bus line's website. Such websites also frequently come with illustrated maps that show both routes and stops along the way.
As an example, the Middletown Area Transit for Middletown, Connecticut, provides a list of bus routes for different days of the week. The routes correspond to certain streets within the city, and visitors can click on individual routes for details.
An individual MAT route page displays, first of all, a schedule showing stops and corresponding times. Travelers should note that some stops are by request only. Individual pages also have route maps showing streets and stops along the way, with route paths marked with different-colored lines. As with several bus lines, the MAT has a separate a.m. and p.m. schedule.
The website of the Metropolitan Transportation Authority in New York City also has a page of service advisories. Travelers should consult this page, or a similar one for a different area, for determining which buses to take, as it lists the status of individual lines, such as whether the line has good service, a service change or a planned detour.