Improved access to information for blind and low vision pedestrians
There is no speech announcement of what intersection a person is at.
- Announcement of what street is to be crossed
- Long press for more information related to characteristics of crossing
Our prototype used a Glowforge laser cutter to engrave the sign and cut the acrylic, and a Raspberry Pi computer. Our enclosure is acrylic, the sign is black anodized aluminum. Our COGs total $66:
- Raspberry Pi 2: $40
- 1Gb MicroSD card: $5
- Acrylic: $4
- Anodized aluminum: $6
- USB speakers: $11
A 4-way intersection needs 8 sign boxes, so the COGs per intersection would be about $528.
Reduction in pedestrian injuries from pedestrian/vehicle and pedestrian/cyclist crashes
- No announcement of medians
- At a reduced cost $591,000 will allow 1120 intersections to receive APS systems compared to the current number of 75 intersections for that price. (7,8880 * 75 intersections)