Crossableness

The crossableness of its bar at all times, enabling the city to keep a constant and certain communication with the metropolis, has greatly aided its growth and progress.

With the Main street crossing blocked for wagon traffic, and with the River street crossing in a most uncertain state of crossableness, already there are beginning to be surmises and speculations afloat in regard to the circus parades.

The crossableness of a road in front of oncoming traffic is also an affordance in which one must cover a certain distance (the width of the road) in less than a certain time (the interval until the next vehicle arrives). It was hypothesized that, as in the fly ball situation, perception of crossableness would be more accurate given perceptual information about walking abilities (e.g., walking speed).