Tutorial Control Delay

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Control Delay Control Delay is the portion of the total delay attributed to traffic signal operation for signalized intersections. Control Delay can be verified following the steps below:.

'''Removing vehicles that entered subject link during warm-up time and did not depart within simulation duration. These instruction are based on using MS Excel.''' 1. The TSD output file is needed from a simulation run. 2. Remove/Delete vehicles that entered the subject link before expiration of warm-up time. 4. Remove/Delete the vehicle ID which did not depart the link within simulation duration. 5. Save filtered file as TSD_1_0_1_input.csv.
 * Filter Column A(SimTime) with to include only time less than the warm-up time.
 * Identify the vehicle ID in Column B.
 * Remove/Delete entries with these vehicle ID from database.
 * Filter column A with 'simulation duration' + 'warm-up time' (the last time step of simulation).
 * Identify the vehicle ID in Column B.
 * Remove/Delete entries with these vehicle ID from database.

Delay calculation using RStudio 6. Open RStudio and run total_delay.R. 7. Check the results in total delay.csv. Note: We verified only the through movement of the links. The Vehicle Desired Speed would be different for both left and right turning vehicles because of the different Link Free Flow Speed on downstream link than upstream link which affect the delay calculation for the vehicles turning left or right.
 * This script calculates total delay by following process:
 * Input TSD_1_0_1_input.csv file.
 * Input link length manually.
 * Link Travel Time = Link Exit Time - Link Entrance Time using time in column A.
 * Vehicle Desired Speed = LinkFreeFlowSpeed* × Vehicle Driver Type Desired Speed Multiplier*.
 * Vehicle Desired Travel Time = Link Length* / Vehicle Desired Speed.
 * Individual Vehicle Delay = Link Travel Time - Vehicle Desired Travel Time.
 * Total delay = Summation of individual vehicle delay.
 * Output total delay.csv.
 * *These values can be found in SwashSim model. Duration time & warm up time can be found on simulation panel in SwashSim model.
 * Total vehicle: Count the number of ID in column B.
 * Total delay: summation of delay in Column F.(Filter out the negative values)