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Traffic estimation and prediction systems (TrEPS) have the potential to improve traffic conditions and reduce travel delays by facilitating better utilization of available capacity. These systems exploit currently available and emerging computer, communication, and control technologies to monitor, manage, and control the transportation system.
Used to determine the distance headway between a vehicle and its predecessor. One of the simplest model in this category is the Pipe's rule, the basic assumption of this model is "A good rule for following another vehicle at a safe distance is to allow yourself at least the length of a car between your vehicle and the vehicle ahead for every ten miles per hour (16.1 km/h) of speed at which you ...
A traffic congestion map is a graphical, realtime or near-realtime representation of traffic flow for some particular area. [1] Data is typically collected via anonymous GPS datapoints and loop sensors embedded in the roadways, then processed by computer at a central facility and distributed as a map view to users.
Transportation forecasting is the attempt of estimating the number of vehicles or people that will use a specific transportation facility in the future. For instance, a forecast may estimate the number of vehicles on a planned road or bridge, the ridership on a railway line, the number of passengers visiting an airport, or the number of ships calling on a seaport.
Speed-flow diagram for a highway, scales omitted. When the volume of vehicles per hour reaches 75%-100% of the road capacity, traffic flow shifts from free-flowing (green) to congested (gray) and both volume and speeds are reduced. The red ellipse represents rush-hour traffic. [8] [9] [10]
In the second quarter, McDonald's US same-store sales decreased 0.7%, driven by a drop in foot traffic. It's the first decline in US same-store sales in 16 quarters. It's the first decline in US ...
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In transportation engineering, traffic flow is the study of interactions between travellers (including pedestrians, cyclists, drivers, and their vehicles) and infrastructure (including highways, signage, and traffic control devices), with the aim of understanding and developing an optimal transport network with efficient movement of traffic and minimal traffic congestion problems.