Mansell Street was conceived in the 1950s as part of a never-completed cross-town freeway. By design, Mansell Street primarily serves motorized vehicles. The width of the traffic lanes and three different speed limits posted encourage speeding. Pedestrians have to walk on the street or climb over a guard rail and walk along an informal path to access different park facilities or to commute between neighborhoods. Bicyclists currently share the road with vehicles travelling at speeds up to 45 MPH, and public transit users have to wait on the street for a bus.
 

The Marina Bay Trail Planning project is an outreach process designed to look at alternative design options for the Bay Trail along Marina Boulevard from Scott to Baker streets. The process includes collecting data about the number of people walking, biking and driving in this section and gathering input from the community about what improvements they would like to see in this area. 
 

The guiding principles:

The Marina Green Bicycle Trail Improvement Project will complete a vital pedestrian and bicycle link in the San Francisco Bay Trail between Fort Mason and Crissy Field. This segment serves thousands of residents, commuters and tourists on a daily basis. The project will improve the safety and quality of experience for all users of the path. Improvements include widening segments of the path, repaving the entire length, removing existing barriers, and accessibility upgrades. The project also complements the repaving of Marina Boulevard.

Construction work will be performed on stretches of McAllister Street from Divisadero Street to Polk Street. Construction work includes sewer main replacement, traffic signal work, ADA curb-ramp installations and roadway resurfacing.

The Newcomb Streetscape Improvement Project is an innovative synthesis of community stewardship, agency collaboration, public realm enhancement, and environmental benefit in one of San Francisco’s most environmentally challenged neighborhoods.

The Point Lobos Streetscape Improvement project boundaries are on Point Lobos Avenue between 42nd Avenue and 48th Avenue, in the city’s Outer Richmond neighborhood. As currently funded, the project will involve construction of new landscaped medians on three blocks, "thumbnail" medians and lane striping for traffic control and safer pedestrian traffic on the remaining three blocks, and infill street tree planting within the entire project area. The goal of the project is to enhance the appearance and safety of this scenic roadway.

This project will enhance bicycle safety and convenience through this important connector for bicyclists from Market Street to the Polk Street corridor, a busy bike thoroughfare. This two-block stretch along the southern end of Polk Street, from Grove Street to Market Street, has separated bike lanes in both directions.
 

A new northbound bike lane is separated from traffic by landscaped medians. The existing southbound separated bike lane was widened and a painted buffer with safe-hit posts was added between Hayes and Market Streets.
 

In early 2006, the Mayor’s Office of Economic Development, the Planning Department, Public Works and the Mayor’s Office of City Greening conducted community workshops to determine the needs of the Lower Polk Street neighborhood. Through the collaborative community planning process, businesses and residents along the corridor identified improvements that would make Polk Street a greener, cleaner and a more inviting environment. 
 

The San Bruno Avenue Streetscape Improvement Project is the first completed project of the Great Streets program. The project planted 120 new street trees, enlarged tree wells with Fortnight Lilies and decomposed granite, and the installed banner poles and banners unique to the neighborhood. Tree species, selected for their beauty and suitability to the environment, include Scarlet Maple, Flowering Cherry, and Queen Palm. A Neighborhood Beautification Grant funded the vibrant new community-designed banners.

The improvements include streetscape improvements for McCoppin Street, Jessie Street, Stevenson Street, Valencia Street, Elgin Park, and Pearl Street. The project consist of street trees, medians, chicanes, landscaping, new lighting, street imprint/cobblestone, and brass street name plaques.