During hours when humans are less active, road-near habitats may be sought out.
Moreover, infrastructure-assisted scheduling and access control contributes significantly towards achieving the active road safety application requirements.
For instance, the active road safety applications require high level of real-time data acquisition and processing.
Active road safety systems help in avoiding the road collisions, when human drivers last their control due to drowsiness, use of alcohol, and other in-vehicle activities, by keeping the vehicle in control.
For example, the conclusion made in [22, 23] that IEEE 802.11p is a promising standard for active road safety applications is difficult to hold beyond network sizes of 50 vehicles, according to our studies.
For example, it can be inferred that IEEE 802.11p is capable of handling active road safety and cooperative traffic efficiency latency and PDR requirements when vehicles are sparsely distributed within the same area.
Active road safety applications: Enabled by a set of detailed data both from local sensor measurements and obtained from other participants within the vehicular network, these applications provide drivers with an unprecedented, extensive field of view on the driving environment.
System performance requirements of active road safety applications include lower latency (=100 ms), short to long coverage distance (300 m to 20 km), minimum transmission frequency of 10 Hz, and low-to-medium data rates (1 to 10 kbps).
Based on the above results, we further conclude that for smaller vehicle densities, IEEE 802.11p standard offers end-to-end delays less than 100 ms and throughput equivalent to 10 kbps which satisfies the requirements posed by active road safety application and few of the more lenient cooperative traffic efficiency applications.
Grace is still an active road bicyclist and remains close to her three adult children and two grandchildren who fully accept her journey.
