Eastern Neighborhoods Transportation Implementation Study (EN TRIPS)
San Francisco, California
San Francisco Municipal Transportation Agency
Subconsultant to Nelson/Nygaard
CD+A worked with a multidisciplinary team to develop transportation and streetscape solutions that are based on San Francisco's award-winning Better Streets Plan authored by CD+A and intended to complement recent community-based planning efforts in San Francisco's Eastern Neighborhoods. CD+A worked closely with the transportation consultants on the team to develop complete streets design concepts for three key corridors: Folsom and Howard Streets; 7th and 8th Streets; and 16th Street. The development of alternatives for these corridors addressed issues prevalent throughout the Eastern Neighborhoods, such as the need for walkable neighborhood commercial districts, balancing support of employment-rich uses and livability goals, and the improvement of transit performance and the bicycle network. The transportation solutions developed by the team and translated into a context driven streetscape designs by CD+A applied innovative concepts such as one- and two-way protected bike lanes ('cycle tracks'), a dedicated center transitway, and queue-jump lanes for buses.
After the selection of a set of preferred alternatives, CD+A developed more detailed streetscape concepts for each of the three corridors. These streetscape concepts aimed to transform the existing, somewhat bleak sidewalks in the project areas into comfortable walking and transit environments through sidewalk widening, new landscaping, amenities such as lighting and seating, small public spaces, and buffering from moving traffic. The concepts also included Green Streets (LID) elements such as stormwater planters and bioswales for urban streets. A major challenge of the streetscape design was how to design cycle tracks to safely integrate with adjacent pedestrian sidewalk space and space used by vehicles at intersection, alley crossings, and along parking. The team jointly developed streetscape solutions for these issues in a manner that reduced the potential for conflicts with motorists and pedestrians while capitalizing on these bike facilities' potential for place-making.
The City of San Francisco intends to capitalize on the innovative approaches included in the conceptual street designs by targeting grant programs and funding sources aimed at implementing complete streets, bicycle improvements, and green infrastructure projects.