Parameters of the tour planning procedure

Basis tab

Element

Description

Demand period section

From / To

You specify the demand period via the input fields. The period begins with the walk link to the pickup node. This walk link is already part of the trip request. The start time of the walk link may lie before the desired departure time of the trip request.

Output section

Target PrT path set:

In the drop-down list, click the target PrT path set to which you want to save the output values. Click the Generate button to insert new PrT path sets.

Output attributes for PrT path volumes (optional)

Selection of attributes in which the PrT path volumes are stored.

Links / Turns / Main turns

Optional link/turn/main turn attribute to which the network volume is saved that is generated by ride sharing vehicles. Each of these vehicles generates a volume of 1.

Matrices section

Calculate PuT skim matrices

Select this option to have PuT skim matrices calculated.

Calculate PrT demand matrix (veh)

Select this option to generate a demand matrix for vehicles based on tour planning.

Click the button to specify a target matrix for the demand matrix.

Tours tab

Element

Description

Fleet

Number of vehicles

Specify the number of vehicles available.

Number of seats per vehicle

Specify the number of seats per vehicle.

Vehicle sharing section

Multiple trip requests may share a vehicle

 Select this option to allow for the operation of more than one vehicle at a time.

 Deselect this option if you want a vehicle to be exclusively available for one trip request at a time. It can then only be used again after completing the previous trip request.

Maximum detour factor

Specify a factor for the maximum additional time accepted by passengers to serve more than one trip request.

Maximum detour time

Specify the maximum additional time accepted by passengers that results from servicing more than one trip request.

Detour time accepted at all times

Specify the lowest limit of additional time that is always accepted when operating a ride sharing system (Fundamentals: Demand for ride sharing).

Pick-up and drop-off nodes section

Permit only active nodes as PUDO points

Select this option to assign only active nodes as pickup and dropoff points.

Maximum walk time

Maximum walk time from a node to or from a pick-up/drop-off point.

Maximum number of pick-up or drop-off points per node

Specify the maximum number of pickup or drop-off points considered per pick-up or drop-off node.

Preset pick-up node attribute

Optionally, select an attribute that specifies the pick-up node.

Preset drop-off node attribute

Optionally, select an attribute that specifies the drop-off node.

Time for boarding and alighting section

Per trip request

Specify the service time per trip request. It occurs per trip request due to the boarding and alighting at a stop. If several trip requests are served at one stop, e. g. one passenger boarding and two alighting, the service time is included in the calculation more than once.

Per passenger

Specify the time in seconds that is used per passenger in the calculation.

Tour planning tab

Element

Description

Parameters section

Minimize required vehicles

You can then use the slider to minimize number of vehicles. If you move the slider in the direction of More served trip requests, the number of vehicles required usually increases. If you move the slider in the direction of Fewer vehicles, the number of trip requests is usually smaller.

Limit vehicle search for runtime optimization

If the option is selected, the search for vehicles will give preference to those located near the pick-up node. This improves the runtime of the procedure, but at the expense of the quality of the solution.

Tour optimization interval

If the option is selected, you can enter a value that determines from which number of executed trip requests a new optimization for the future, already known trip requests takes place.

Note

You cannot use this option in combination with the option for electromobility Node is charging area on the Locations tab.

Calculation mode for tour planning

From the drop-down list, select the desired calculation method:

  • Faster stands for the fastest possible results.
  • Default stands for a standard calculation that aims to achieve a balance between speed and quality.
  • More precise stands for achieving the best possible quality of results.

Cost function for calculating the pick-up and drop-off points

You can use the coefficients of the cost function to weight the efficiency of the tours against the walk times of the passengers (Fundamentals: Tour planning procedure). A greater value in run and wait time leads to more efficient tours.

Link run times section

PrT demand segment of vehicle fleet

You can use the drop-down list to select the demand segment to be used for calculating the link times.

Locations tab

Element

Description

Section Holding areas

Node is holding area

Selection of a node attribute that determines whether a node is a holding area.

Use holding areas for relocation

If the option is selected, holding areas can be used to relocate vehicles.

Time of inactivity

Input field for the period of inactivity that may elapse before vehicles have to return to the holding area.

Use holding areas for the start and end of a tour

If the option is selected, holding areas can be used to start a tour.

You can then also select an attribute that contains a Holding area weight.

If this option is not selected, the start and end positions of the vehicles are randomly distributed to the pickup nodes of the trip requests.

Section Charging areas

Node is charging area

Selection of a node attribute that determines whether a node is a charging area.

Maximum range

Input field for the maximum range of the e-vehicle

Charging duration to 80%

Input field for time required to reach 80% of the charging capacity.

Charging duration from 80% to 100%

Input field for the additional time required to reach 100% charging capacity.

Skim matrices tab

Note: To calculate skim matrices, on the Basis tab, select Calculate PuT skim matrices.

You only have to set parameters for skim matrix calculation if you want to calculate tour planning and skim matrices simultaneously (Settings for PuT skim matrix calculation).