Diverse transportation modes connect urban lives flexibly and efficiently. They require safety, comfort, health, interest, and multiple human uses in the public streets they share.

The Living Street: Ninth Street’s pedestrian and biking spaces are enlarged at the expense of vehicular asphalt. The streetscape space is defined and unified. Wide, furnished sidewalks accommodate diverse neighborhood uses protected from vehicular traffic.

The Travel Street: Fourth Avenue’s numerous traveling lanes are retained for the avenue’s vehicular function. In addition, pedestrian and transit enhancements make the street safely and conveniently multi-use. The street’s overpass shelters links among all travel modes.

Walking is healthy, economical, quiet, nonpolluting, and neighborly. Safe, exclusive pedestrian zones are defined and enlarged everywhere. Intersection bulbouts shorten street crossings while calming vehicles’ right-turn behavior. Medians form mid-street refuges and calm left-turn behavior. Special brick-like paving distinguishes pedestrian crosswalks, to alert drivers that special attention is required.

Biking provisions are doubled. Two bike lanes are extended to the northwest. Different paving types vividly distinguish them from driving lanes. Sheltered, secure bike lockers are added for transit riders.

Transit links are visible, safe, and convenient. Bus bulbs make waiting and boarding convenient for passengers, and give stopping busses lane priority over other vehicles. The transit overpass shelters waiting passengers. Subway entrances are widened and defined. Lighted signs show real-time transit alerts.

Vehicular traffic is calmed everywhere. Pavement areas are reduced. On-street parking separates moving traffic from pedestrians. Paving types visibly confine driving lanes, and distinguish them from bike and parking lanes. Left-turn and right-turn lanes are eliminated in favor of pedestrian bulbouts and refuges. Bus transit is given priority by bus bulbs that allow busses conveniently to pick up passengers and continue traveling.

Simple contemporary technologies make environmental quality and street character possible. Trees restore air quality, moderate street climate, and define streets’ outdoor architecture. “Structural soil” allows the trees to grow to full mature size, providing the benefits for which they are planted, by making rooting space viable amid street surfaces. It supports newly planted trees, and revitalizes stunted old trees by retrofitting obsolete impervious construction. Permeable paving surfaces supply air and water to tree roots, while restoring water quality. Appropriate paving types differentiate moving, parking, and pedestrian zones.