Daylighting is a design practice that improves sight lines by opening space around an intersection. By design, 20 to 25 feet if open space is available, allowing for the opportunity to install bicycle parking, curb extensions and bioswales to be used that further diversify the area. This available space correlates with city regulations. Section 285-15B of the Code of Ordinances states that, No vehicle shall be parked within 20 feet from any crosswalk at a street intersection”. In Lancaster, Daylighted areas can be identified by paint or vertical elements known as delineators.
Daylighting also shortens crossing distances and allows pedestrians to have a protected space to wait before crossing an intersection. As a result, designers use this countermeasure to reduce incidents at conflict points, to ensure that sightlines are adequate, and movements are predictable. An additional reinforcement to daylighting is that there is sufficient lighting at a given intersection. Major intersections and pedestrian islands should be well lit, so that all who are using the street have the capability of seeing one another.
References for Bike Facilities: Daylighting
National Association of Transportation Officials, “Visibility/Sight Distance”
City of Lancaster, PA City Code 285 “Vehicles and Traffic”