Series 1. Photolog Films
A photolog film is a film of sequential images of the highway and its environs taken at equal increments of distance from a moving vehicle at driver’s eye level. The film documents such information as number of lanes, surface type, pavement markings, signs and hazards. It provides a permanent record or history of any one state highway at a given time. Additional information is included in the frame of the image, such as date, route description, direction and milepoint. All state roads were filmed in both directions.