the triangular shaped area at each end of the greek temple is called tympanon.
the triangular shaped area at each end of the greek temple is called tympanon.
what is the triangular shaped area at each end of the greek temple called?
tympanon
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in the study of traffic flow theory, the flow-density diagram is used to determine the traffic state of a roadway. currently, there are two types of flow density graphs. the first is the parabolic shaped flow-density curve, and the second is the triangular shaped flow-density curve. academia views the triangular shaped flow-density curve as more the accurate representation of real world events. the triangular shaped curve consists of two vectors. the first vector is the freeflow side of the curve. this vector is created by placing the freeflow velocity vector of a roadway at the origin of the flow-density graph. the second vector is the congested branch, which is created by placing the vector of the shock wave speed at zero flow and jam density. the congested branch has a negative slope, which implies that the higher the density on the congested branch the lower the flow; therefore, even though there are more cars on the road, the number of cars passing a single point is less than if there were fewer cars on the road. the intersection of freeflow and congested vectors is the apex of the curve and is considered the capacity of the roadway, which is the traffic condition at which the maximum number of vehicles can pass by a point in a given time period. the flow and capacity at which this point occurs is the optimum flow and optimum density, respectively. the flow density diagram is used to give the traffic condition of a roadway. with the traffic conditions, time-space diagrams can be created to give travel time, delay, and queue lengths of a road segment.
fundamental diagram of traffic flow