Green Team Meeting 2

GREEN TEAM MEETING 2: Streets July 23, 2008

AGENDA 

Objective:  Strategies

for greener, pedestrian-friendly

streets  Discussion of current city policies

Design Guidelines follow-up  Presentation and discussion 

LEED ND PILOT NEIGHBORHOODS

UPPER CHESTER FLATS EAST BANK

EUCLID CORRIDOR

ST. LUKE’S POINT

STREET CONFIGURATION LANE WIDTHS - determining acceptable criteria for safer, narrow streets Drivers behave less aggressively on narrow streets, running fewer traffic signals, for example (Untermann, 1990). In studies of varying street widths and traffic safety, It appears that the group of streets with the safest results occur between 22 and 30 feet in curb face width. (Residential Street Typology and Injury Accident Frequency, by Peter Swift)

Battery Park

STREET CONFIGURATION CURB RADII – improving pedestrian safety while accommodating emergency vehicles

In new construction, the appropriate turning radius is about 4.6 m (15 ft) and about 7.6 m (25 ft) for arterial streets with a substantial volume of turning buses and/or trucks. (PEDSAFE – Pedestrian Safety Guide and Countermeasure Selection System)

Kent, Ohio

DESIGN FOR BICYCLES BIKE ROUTES - Connections to existing or planned bike routes including the Towpath and Lakefront trails Several data sources have shown that crashes between motorists and pedestrians or bicyclists are less likely when there are more people out bicycling or walking (Jacobsen, 2003).

Lakefront Bikeway, Cleveland

DESIGN FOR BICYCLES SHARROWS – discussion of Franklin Boulevard application

In San Francisco, which studied design and placement of sharrows in 2004, sharrows were shown to improve lane positioning of cyclists and improved passing distance by motorists. Pittsburgh

DESIGN FOR BICYCLES SPEED LIMITS – USGBC requirements for dedicated bike routes

Fatality rate of vehicle/pedestrian accidents drops from 45% at 30 mph to 5% at 20 mph or less (U.K. Department of Transport, 1997)

Seattle, Wash.

DESIGN FOR BICYCLES BIKE FRIENDLY DETAILS – e.g. bike racks, bike “troughs”

Bike “trough,” Netherlands

LANDSCAPING TREE PIT DETAILS – for stormwater management, continuous tree trench. Euclid Corridor application?

Boston

Alexandria, Va.

LANDSCAPING TREE SPECIES – LEED requires 50% of impervious areas to be shaded (within 5 years of occupancy), high-reflectance or open grid. Also need 90% native species. • Preferred native, fast-growing tree species to meet these requirements?

Black maple

Black walnut

Sycamore

LANDSCAPING NATIVE PLANTS – LEED requires native plants for 90% of vegetation and no invasives • Preferred species to meet these requirements?

Pennsylvania sedge

Jack in the pulpit

PEDESTRIAN FEATURES CROSSWALKS – newer approaches, e.g. raised crosswalks, bump-outs, rapidly flashing signals, in-pavement signals. • Which would be preferred options?

Sidewalk bump-out, Willoughy, Ohio

Raised crosswalk, Cambridge, Mass.

PEDESTRIAN FEATURES AUDIBLE SIGNALS – discussion of Euclid Avenue application

Euclid Avenue crosswalk

CONSTRUCTION DETAILS RECYCLED CONTENT – LEED rewards use of recycled content in infrastructure (sidewalks, parking lots, curbs, streets)

Recycled bricks from Cleveland, Toronto Distillery District

Recycled tire bricks, San Antonio

Glassphalt

CONSTRUCTION DETAILS STREET CLOSING – Preferred methods for temporary street closings

E. 4th Street, Cleveland Architectural gate piers

GREEN STREETS Streets with vegetated facilities that manage stormwater on site

Portland, Ore. Portland, Ore.

GREEN STREETS Streets with vegetated facilities that manage stormwater on site

QUESTIONS/FEEDBACK