Mike McGurrin in Thinking Highways discusses accessibility as a performance measure in the article: The Metrics Reloaded

I am quoted:

There is an institutional divide between transportation planning and management and land planning and management. Mobility measures still dominate discussions of system performance in transportation. Also transportation agencies feel they do not control land use, so that including  it in the performance measures is not helpful, while land planning agencies feel they do not control transportation.

We do of course recommend overcoming this institutional divide.

A recommended federal measure would provide a benchmark for the state and local agencies, which then could develop  their own accessibility metrics.

The article also cites Brendon Slotterback’s proposal for a Department of Accessibility