Traffic Intersection Diagram
For the professionals in the field of traffic accident analysis we provide a very flexible application to create calculate and draw distance time diagrams including a consideration of the velocity course in order to analyse and reconstruct the.
Traffic intersection diagram. Accident scene diagram 3 lane highway intersection. A diverging diamond interchange ddi also called a double crossover diamond interchange dcd is a type of diamond interchange in which the two directions of traffic on the non freeway road cross to the opposite side on both sides of the bridge at the freeway. The fundamental diagram of traffic flow is a diagram that gives a relation between the traffic flux vehicles hour and the traffic density vehicles km. Diagram of an example intersection of two way streets as seen from above traffic flows on the right side of the road.
16 18 scale 1 96 accident description vehicle 1 made a right turn onto camino del sol and hit vehicle 2 in the left rear panel. There was a temporary construction zone at the time of the incident so these symbols are added next. If a stop or give way sign has been knocked down for example as the result of an accident the. Text in this example.
We ll also add a compass and our diagram information box from the smartpanel. Doing this removes the crossing conflict. A macroscopic traffic model involving traffic flux traffic density and velocity forms the basis of the fundamental diagram. This microsoft word template allows users to sketch an accident scene by adding and resizing a variety of objects including roadways vehicles traffic signs and other symbols in a 3 lane highway intersection.
The basic traffic manoeuvres such as diverging merging and crossing are used in at grade intersections. In the adjacent diagram while the left right traffic flows through the main intersection the left turn traffic crosses to the opposite side of the oncoming traffic a few hundred feet away. You ll want to include only the information that is important to the case. Vehicle 2 was parked in a fire lane with no hazard lights indicating that it was stopped.
The east west street has left turn lanes from both directions but the north south street does not have left turn lanes at this intersection. The driver of vehicle 1 stated that the bush blocked his view of the street. Highway intersections may be broadly classified into the following two types. Therefore in the diagram below vehicle p has right of way over vehicle o.
Instructions from a police officer override signs and lights at an intersection. It can be used to predict the capability of a road system or its behaviour when applying inflow regulation or speed. It is unusual in that it requires traffic on the freeway overpass or underpass to briefly drive on the opposite side of the road. This intersection features signals at each corner and an overhead traffic light at the center.