Work Zone alerts are intended
to warn/advise drivers of dynamic work zones, where different lanes may be
closed on a day-to-day basis. It could also
be used to warn drivers when construction vehicles may be entering or exiting
a work zone.
Pedestrian detection is an
infrastructure based sensor that can detect when pedestrians with special
needs require additional time to cross the street. The flashing “Don’t Walk” phase can be
extended accordingly. Likewise,
warnings can be sent to vehicles near the intersection.
Priority assignment for EV
preemption will prevent two emergency vehicles from colliding at an
intersection from different directions.
This particular crash problem, while very low in frequency, can easily
be solved by modifying the signal controller to assign priority to one of the approaching
emergency vehicles.
Secondary accident warning -
Warn drivers of an accident ahead that may involve unequipped vehicles unable
to transmit a DSRC message .
Lane departure warning - AASHTO
agrees that this will likely be an autonomous vehicle solution. However,
most systems currently under development use camera technology to detect the
edge of a lane by identifying the position of the pavement markings relative
to the vehicle’s position. AASHTO would like to know if this system can
be enhanced from the infrastructure side by improving the visibility of the
PMs, adding edge lines, or vertical post markers, especially in areas where
the visibility is reduced by rain or snow