It takes time to perceive a hazard, decide to brake, and then actuate the brakes. The three- or four-second rule provides enough buffer for this reaction time. The rules work at all speeds. As speeds increase, the distance between vehicles also increases. Whether driving slowly in a residen...
For drivers of larger vehicles, that distance should increase by another second or two, and there should also be a greater following distance when weather or road conditions are not optimal. To determine what their following distance should be, drivers can choose a stationary object, such as a ...
Using advanced artificial intelligence (AI), Samsara AI Dash Cams can automatically detect when drivers are following other vehicles too closely at high speeds and auto-upload these incidents to the dashboard for video-based coaching. SeniorCare EMS—the largest commercial ambulance provider in New ...
For a rabbit, this time of year, the world is a giant salad bar. Not need for Peter Rabbit’s coordinates. Unfortunately, this little bunny was unafraid. Saw it on my way back down the mountain. Sad to say, there are too many hawks and coyotes on the hunt for fearless Lepus sylvat...
The resulting parameters can also be utilized in microsimulation models, e.g., for headway adjustment behavior in car-following models. Keywords: safety distance; merging vehicles; on-ramps; NGSIM data; space headway; nonlinear models1. Introduction On-ramp merging locations are considered critical ...
Using a shorter RT than what the driver’s need is can result in a shorter braking distance, which in turn results in a shorter-than-needed stopping sight distance from a driver’s perspective. Hence, considering the findings of this study can directly contribute to sustainable safe roads ...
To tackle this multi-objective optimization problem, a state equation for the ACC system must be first established. In this study, the constant time headway (CTH) was employed as the desired inter-vehicle distance; so, the longitudinal kinematics of the preceding vehicle and the host vehicle, ...