Lists driver and vehicle services, traveller and construction information, and details on public safety.

History and current information on the highway and bridge system in the metropolitan area.

Includes details and history on state-maintained roadways; special pages on Harrisburg, Philadelphia, Pittsburgh, and Erie; exit guides; and photographs.

Essays on transportation history in the Philadelphia area.

Includes histories, photo essays, and discussions.

Historic maps and information about the roads in the Pittsburgh area.

Studies in detail streets in Pittsburgh which are really stairways and streets so steep they need stairways as sidewalks.

Covers the conditions of existing roadways which are planned to carry an I-99 extension.

Covers the city and surrounding area in the west part of the state. Includes history and photographs.

Includes route logs and photographs.