Input Analysis Network
The network dataset on which the closest facility analysis will be performed.
|Network Dataset Layer|
Output Layer Name
Name of the closest facility network analysis layer to create.
The cost attribute to be used as impedance in the analysis.
Travel From or To Facility
Specifies the direction of travel between facilities and incidents.
Using this option can find different facilities on a network with one-way restrictions and different impedances based on direction of travel. For instance, a facility may be a 10-minute drive from the incident while traveling from the incident to the facility, but while traveling from the facility to the incident, it may be a 15-minute journey because of different travel time in that direction.
Default impedance value at which to stop searching for facilities for a given incident. This default can be overridden by specifying the cutoff value on incidents when the direction of travel is from incidents to facilities or by specifying the cutoff value on facilities when the direction of travel is from facilities to incidents.
Number of Facilities to Find
Default number of closest facilities to find per incident. The default can be overridden by specifying a value for the TargetFacilityCount property on the incidents.
A list of cost attributes to be accumulated during analysis. These accumulation attributes are for reference only; the solver only uses the cost attribute specified by the Impedance Attribute parameter to calculate the route.
For each cost attribute that is accumulated, a Total_[Impedance] property is added to the routes that are output by the solver.
Specifies the U-turn policy that will be used at junctions. Allowing U-turns implies that the solver can turn around at a junction and double back on the same street. Given that junctions represent street intersections and dead ends, different vehicles may be able to turn around at some junctions but not at others—it depends on whether the junction represents an intersection or a dead end. To accommodate this, the U-turn policy parameter is implicitly specified by the number of edges that connect to the junction, which is known as junction valency. The acceptable values for this parameter are listed below; each is followed by a description of its meaning in terms of junction valency.
If you need a more precisely defined U-turn policy, consider adding a global turn delay evaluator to a network cost attribute or adjusting its settings if one exists, and pay particular attention to the configuration of reverse turns. You can also set the CurbApproach property of your network locations.
A list of restriction attributes to be applied during the analysis.
Use Hierarchy in Analysis
The parameter is inactive if a hierarchy attribute is not defined on the network dataset used to perform the analysis.
Hierarchy Rank Settings
Prior to version 10, this parameter allowed you to change the hierarchy ranges for the analysis from the default hierarchy ranges established in the network dataset. At version 10, this parameter is no longer supported. To change the hierarchy ranges for the analysis, update the default hierarchy ranges in the network dataset.
|Network Analyst Hierarchy Settings|
Output Path Shape
Specifies the shape type that will be used for the route features that are output by the analysis.
Regardless of the output shape type specified, the best route is always determined by the network impedance, never Euclidean distance. This means that only the route shapes are different, not the underlying traversal of the network.
Time of Day
Specifies the time and date at which the routes should begin or end. The interpretation of this value depends on whether Time of Day Usage is set to be the start time or the end time of the route.
If you have chosen a traffic-based impedance attribute, the solution will be generated given dynamic traffic conditions at the time of day specified here. A date and time can be specified as 5/14/2012 10:30 AM.
Instead of using a particular date, a day of the week can be specified using the following dates:
Time of Day Usage
Indicates whether the value of the Time of Day parameter represents the arrival or departure time for the route or routes.
|Network Analyst Layer|
The newly created network analysis layer.
|Network Analyst Layer|