How are SEPTA's bus routes organized or numbered?

The organization of SEPTA's bus routes into regional and city-wide divisions provides a clear and structured system that makes navigation simpler for riders. This method allows passengers to easily identify which areas are served by specific routes. For instance, routes may be designated for suburban areas or more central urban locations, helping users understand where each bus travels and how it fits into the larger transit network. By categorizing routes in this way, SEPTA enhances operational efficiency while also improving the overall commuting experience for passengers.

In contrast, the other options do not reflect the actual system used by SEPTA. Random allocation lacks a logical framework for route organization and would likely confuse riders. Naming routes after the streets they service might seem practical, but it would not provide the same clarity in distinguishing between different service areas. An alphabetical organization by route name could be cumbersome for users trying to navigate based on geographic location rather than name order. Hence, the categorization into regional and city-wide divisions stands out as the most logical and user-friendly approach.