A note of caution about the use of perceived ("psycho") accessibility in practice: Imagine two travelers with equivalent transit accessibility. The first has high expectations for transit service, and the second has low expectations. The first will register lower perceived accessibility than the second, because they will judge their transit accessibility against what they feel it should be. If perceived accessibility is used as a guide for planning, it will tend to direct resources to the people with the highest expectations, who will tend to be the most entitled groups in cities and regions.
A note of caution about the use of perceived ("psycho") accessibility in practice: Imagine two travelers with equivalent transit accessibility. The first has high expectations for transit service, and the second has low expectations. The first will register lower perceived accessibility than the second, because they will judge their transit accessibility against what they feel it should be. If perceived accessibility is used as a guide for planning, it will tend to direct resources to the people with the highest expectations, who will tend to be the most entitled groups in cities and regions.