Life is mobility.
A city is a living organism. It breathes. It has a heart that pumps its life-blood through arteries, veins, and capillaries, providing the necessary elements that sustain its life. This life-sustaining flow is a city’s Mobility.
When Mobility in a city is cut off, choked, congested, or strangled, parts of the city will atrophy and die. For the healthy life of a city, both economically and physically, people and goods must be able to move about freely, without blockage or unnecessary barriers.
Freedom of movement is a necessity for all users of our transportation system: for automobiles, for trucks, for public transit, for bicyclists, and for the one mode that all mode users share in common, pedestrians.