Campbell Company manufactures three basic levels of APS devices:
Vibrotactile Only- VTO: A simple means of providing a vibrotactile signal to the pedestrian at the PPB when the walk signal is on.
Advisor Base Broadcast Unit - BBU: A ped head mounted device that gives an audible signal when the walk signal is on.
Advisor Fully integrated Pedestrian Station - FIPS: A pedestrian station based unit that provides audible, tactile, and visual signals to the pedestrian.
Vibrotactile Only (VTO): The VTO gives the pedestrian a vibrotactile signal when the walk sign is on. This is an unobtrusive means of providing the pedestrian 100 percent confidence that the walk light is on. There is a vibrotactile signal positively identifying a walk cycle eliminating the pedestrian having to “guess” if they are going to wander through a “Don’t Walk” signal at the crossing.
Advisor, Base Broadcast Unit (BBU): The Advisor BBU replaces the “squawk” boxes that sit on top of the ped head. Advisor BBU directs the audible walk signal down from the base of the ped head to the crosswalk initiation point. This design provides the pedestrian a positive audible signal when the walk cycle has started.
Advisor, Fully Integrated Pedestrian Station (FIPS): The FIPS unit utilizes the base unit driver board and includes a pedestrian station to provide:
- Audible feedback and signals: acknowledgement, location message, and walk cycle signals.
- Visual feedback: an LED when the call has been placed.
- Tactile feedback: a vibrotactile arrow that initiates with the walk cycle.
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