Showing data from links in lists
Using the Link evaluation, you can record the result attributes of vehicles based on segments or lanes of links and connectors for the defined time interval. You can restrict the evaluation to vehicle classes and individual vehicles. The following must be defined in the network:
- Links (Modeling links for vehicles and pedestrians)
- Connectors (Modeling connectors)
- Vehicle inputs (Modeling vehicle inputs for private transportation)
Reversing vehicles are not recorded. Vehicles pulling forward out of a parking lot are not recorded as long as they drive on the connector that connects the parking lot with the link on which they will continue their route.
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Note: Ensure that the attribute Link evaluation of links and connectors - which you want to evaluate - is selected (Attributes of links). |
If you assign links a color based on aggregated parameters, for the Links evaluation, select Collect data (Assigning a color to links based on aggregated parameters).
Vehicle classes are grouped together
By default, the data for all vehicle classes is entered together. You can also show the data for certain vehicle classes separately in the evaluation (Configuring evaluations of the result attributes for lists).
If you calculate and display emissions based on emission classes, an Internet connection is required to transfer the data at the end of the simulation run (Calculate accurate emissions with Bosch Cloud Service).
Output data and formats
You can save the following data and data formats:
Output |
ASCII file |
MDB table |
Attribute file from attribute list |
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Aggregated data |
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Raw data |
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- Show result attributes in attribute lists (Displaying result attributes in attribute lists)
- Show result attributes in a result list (Showing result attributes in result lists)
1. From the Evaluation menu, choose > Configuration > Result Attributes tab.
2. In the Links row, select the option Collect data.
3. If desired, change the time and/or the interval (Configuring evaluations of the result attributes for lists).
4. Click the More button.
The Links window opens.
5. Make the desired changes:
Element | Description |
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Collect link results |
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6. Confirm with OK.
7. Start the simulation (Running a simulation).
Result of evaluation of links
- ► On the Evaluation menu, click > Result lists > Link evaluation results.
A link evaluation contains the following data:
Attribute |
Definition |
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Volume |
Volume [veh/h] For mesoscopic simulation for link segments outside the sections which are simulated microscopically, the following applies: Volume = total distance / (segment length * time interval length) Segment length: value of the Segment length link attribute |
Density |
Vehicle density For mesoscopic simulation for link segments outside the sections which are simulated microscopically, the following applies: Density = total travel time / (segment length * time interval length) |
Speed |
Average speed For mesoscopic simulation for link segments outside the sections which are simulated microscopically, the following applies: (Average) speed = total distance / total travel time |
Emissions |
For add-on module API package only: Results of emission calculation for selected file EmissionModel.dll (Accessing EmissionModel.dll for the calculation of emissions). For add-on module Bosch: Results of the Bosch emission calculation (Calculate accurate emissions with Bosch Cloud Service) Emission values can also be displayed in:
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SimRun |
Simulation run: Number of simulation run |
LinkEvalSegs |
Link evaluation segment: Number of link evaluation segment |
DelayRel |
Delay (relative): Total delay divided by total travel time of all vehicles in this link segment during this time interval For mesoscopic simulation for link segments outside the sections which are simulated microscopically, the following applies: Relative lost time = total delay / total travel time |
TimeInt |
Time Interval: Duration of the evaluation intervals during which the data is aggregated |
You can also show the following attributes of the Cartesian world coordinates in the list as indirect attributes of link evaluation segments:
Attribute |
Definition |
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StartCoord |
Start coordinates: coordinates (x), (y), (z) at which the link evaluation segment begins |
StartCoordX |
Start coordinate (x): x value of the start coordinate |
StartCoordY |
Start coordinate (y): y value of the start coordinate |
StartCoordZ |
Start coordinate (z): z value of the start coordinate |
EndCoord |
End coordinates: coordinates (x), (y), (z) at which the link evaluation segment ends |
EndCoordX |
End coordinate (x): x value of the end coordinate |
EndCoordY |
End coordinate (y): y value of the end coordinate |
EndCoordZ |
End coordinate (z): z value of the end coordinate |
Link |
Number of the link on which the link evaluation segment is located |
StartPos |
Start position: Position in meters at which the link evaluation segment on the link begins |
EndPos |
End position: Position in meters at which the link evaluation segment on the link ends |
Calculation of the link evaluation results for the mesoscopic simulation
The following values are recorded for each meso edge aggregated over all vehicles within a time interval:
- Total path length
- Total travel time
- Total delay: the delay is defined as the actual travel time on the meso edge minus the travel time if the vehicle had been traveling constantly at desired speed.
Recorded values for meso edges with a length of zero are assigned only to the link segment located at the position of the meso edge on the link.
Measurement data from origin connectors and PT line connectors are ignored, since vehicles on these edges are not yet counted as “inserted into the network”. The delay on these edges is counted as Delay (latent), which is not recorded by link evaluations. Delay (latent) for origin connectors = zone connectors / abstract parking lots is displayed in the Parking Lots evaluation (Displaying parking lot results in lists).
Superordinate topic: