APS Online Workshop: Overview

Module A

Module B1

Module B2

• Slides 1-10
• Slides 11-20
• Slide 11
• Slide 12
• Slide 13
• Slide 14
• Slide 15
• Slide 16
• Slide 17
• Slide 18
• Slide 19

Module C

Module D

Module E

Module E: Exercises

Module F

Module G

Module B2 - Slide 19

There are a couple more terms to discuss. “Ped recall” means that the WALK indication will be given every cycle (as if someone were always there pushing the button). “Rest-in-walk” means that the ped signal remains in WALK as long as the parallel street has green. Many people often ask how an APS should be configured at a signal that rests in walk (i.e., should it give the walk continuously?). Instead of sounding constantly, some APS manufacturers provide a limit switch that limits the length of the audible WALK indication to seven or eight seconds, but recalls the audible and vibrotactile indications of the WALK, if the button is pressed when there is adequate clearance time remaining.