On a continuous accessible path, the predecessor requires sharp transitions between landing and ramp planes, landings at every change of direction, a landing or circulation space at each door, gate or comparable entry, and, for walkways and landings flatter than 1 in 33 in the direction of travel, a crossfall for drainage no steeper than 1 in 40 (1 in 33 on bitumen).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.