APS Online Workshop: Overview

Module A

Module B1

• Slides 1-10
• Slides 11-20
• Slides 21-30
• Slide 21
• Slide 22
• Slide 23
• Slide 24
• Slide 25
• Slide 26
• Slide 27
• Slide 28
• Slide 29
• Slide 30

Module B2

Module C

Module D

Module E

Module E: Exercises

Module F

Module G

Module B1 - Slide 27

Some of the issues relate to the width of street, as well as larger corner radius. Wide streets require more precise alignment and large radius corners make alignment more difficult. Large radius corner also increase crosswalk length. When medians, islands or curb extensions are installed, they may complicate wayfinding and alignment tasks by requiring turns during the crossing. Others are that crosswalk alignment is not consistent in relation to the intersection, the curb ramp and the sidewalk. Additional features such as raised crosswalks or depressed corners can make it difficult to locate the street sidewalk boundary. And while channelized lanes may shorten some of the crossing distances, they require detecting and crossing in gaps in traffic even at noisy signalized intersections.