This blog post will be the start of a series of sections about the importance of trails throughout Pennsylvania. This article will focus on the connection of pedestrian and vehicular systems, while later posts will incorporate case studies relating to connections of natural resources, shopping districts, entertainment centers, schools, residential areas and workplaces.
How is the connection of vehicular systems to pedestrian systems related to stormwater management and clean water?
Simply said: Connection of robust public transit systems to safe biking and pedestrian trails equals a reduction in impervious surfaces needed for roadways and parking. Impervious surfaces increase stormwater runoff, flooding and the conveyance of oils, sediment and other toxins into the water systems we rely on for consumption, recreation and the basic survival of all species that inhabit this planet.
The image below, created by the Cycling Promotion Fund, best describes the amount of space- ergo impervious surface needed for buses and bikes versus cars.
Cyclists taking the same space as cars in a Latvian protest during rush hour.

Trails are an important part of keeping a strong, clean environment. Their upkeep is important due to the natural resources and species that inhabit the planet. In order to continue to have a clean, green earth, we must protect and manage these systems.
For more information, visit
Philadelphia Water Department: Green City, Clean Waters
Partnership for the Delaware Estuary