starcentury.blogg.se - Mapinfo 10 show area intersection between rings

This can occur when a network element where the point should be was deleted, and the network location was not recalculated.

2 (Network element not located)-The network element identified by the point's network location fields can't be found.

1 (Not Located)-The point was not successfully located on the network and consequently was not included in the analysis.

0 (OK)-The point was successfully located on the network.

Indicates the status of the point with respect to its location on the network and the outcome of the analysis. Learn more about U-turns and curb approach No U-Turn (3)-For service areas, this option functions the same as Either side of vehicle. The following graphic illustrates departing a facility from the left side of a vehicle: Left side of vehicle (2)-The service area can begin or end at the facility such that the facility is on the left side of the vehicle. The following graphic illustrates departing a facility from the right side of a vehicle: Right side of vehicle (1)-The service area can begin or end at the facility such that the facility is on the right side of the vehicle. The following graphic illustrates departing a facility from either side of a vehicle:

There are four options for the CurbApproach value:Įither side of vehicle (0)-The service area can begin or end at the facility such that the facility is on the right or left side of the vehicle. If the curb approach is confined to one side of the vehicle, it could further limit the reach of the service area. The CurbApproach field specifies the direction a vehicle may arrive at and depart from the facility.

Learn more about locating inputs on a network Together, these properties describe the point on the network where the object is located. If no value for the Breaks_ field is specified, service area polygons are generated for the facility based on the Cutoffs setting. The value specified in the Breaks_ field overrides the Cutoffs analysis layer setting. For example, to specify 6-, 9-, and 12-minute polygons for a given facility, the field value should be 6 9 12. Multiple breaks should be specified using a space-separated string. Given two facilities, this means you can generate 5- and 10-minute service area polygons for one facility and 6-, 9-, and 12-minute polygons for another facility. You can store different polygon break values for each service area facility in the Breaks_ field. (For instance, Breaks_DriveTime, where DriveTime is the travel cost for the network) For example, if you add a 5 to Attr_DriveMinutes, but the cost attribute used in the analysis is TruckTime, the additional 5 minutes aren't included in the analysis results however, if you change the network cost attribute to DriveMinutes, which corresponds with Attr_DriveMinutes, the 5 minutes you entered are added to the results. The value you enter affects the analysis only when the part of the field name ( Attr_) matches the cost attribute chosen for the analysis layer or travel mode. Similarly, Fire Station 2 would have a service area of only 2 minutes from the fire station. If a 5-minute service area is calculated for both fire stations, the actual service area for Fire Station 1 would be 4 minutes (since 1 of the 5 minutes would be required as turnout time). Assume Fire Station 1 has a turnout time of 1 minute and Fire Station 2 has a turnout time of 3 minutes. If you're finding the service areas for three facilities using drive time as the cost, the field Attr_ DriveTime can be used to store the amount of time spent at the facility.įor example, when calculating service areas that represent fire station response times, Attr_ DriveTime can store the turnout time, which is the time it takes a crew to put on the appropriate protective equipment and exit the fire station, for each fire station. Adding a value to this field reduces the reach of the service area. This field stores the additional time, distance, or other travel cost for the facility. (For instance, Attr_Minutes, where Minutes is the travel cost) The geometry field indicating the geographic location of the network analysis object.