The research of Bloch in the nineteenth century laid the groundwork for the Blondel-Rey Law of visual integration, a law that lies at the heart of warning signal specification methods. That early research suggested that the eye is a perfect integrator up to some temporal limit. Recent vision...

Our modern rectilinear visual environment contains visual stimuli for which evolution has not had time to optimally shape visual processing. One such stimulus, periodic stripes, is known to lead to visual depth ambiguity. In this paper we show that postural instability, as measured by the...

The wallpaper illusion, first described over a century ago, can occur when a person with normal binocular vision views a pattern that is periodic in the horizontal meridian of the visual field. Escalator treads present such a pattern. Evidence is presented favoring the view that disorientation...

This paper reports on research conducted by the Safe Transportation Research and Education Center and sponsored by the California Department of Transportation (“Caltransâ€) to establish performance measures for pedestrian and bicycle safety and mobility along urban arterials. Although...

This paper summarizes and synthesizes a series of empirical analyses investigating the role of urban space in affecting minority employment outcomes. It adds to the considerable (but inconclusive) literature by broadening the focus beyond transportation and the “friction of space,†and...