Fields

Description

Data type

Name

The name of the incident. The name is used in the driving directions. If the name is not specified, a unique name prefixed with Location is automatically generated in the output routes and directions.

String

ID

A unique identifier for the incident. The identifier is included in the output routes (as the IncidentID field) and can help join additional information from the output routes, such as the total travel time or total distance, to attributes from your incidents or vice versa. If the ID isn't specified, the service automatically generates a unique identifier for each incident.

String

AdditionalTime

The amount of time spent at the incident, which is added to the total time of the route. The units for this attribute value are specified by the Measurement Units parameter. The attribute value is included in the analysis only when the measurement units are time based. The default value is 0.

If you are finding the closest fire stations from fire incidents to estimate response times, the AdditionalTime attribute can store the amount of time it takes firefighters to hook up their equipment at the location of the incident before they can begin fighting the fire.

Double

AdditionalDistance

The extra distance traveled at the incident, which is added to the total distance of the route. The units for this attribute value are specified by the Measurement Units parameter. The attribute value is included in the analysis only when the measurement units are distance based. The default value is 0.

Generally, the location of an incident, such as a home, isn't exactly on the streets; it is set back somewhat from the road. This attribute value can be used to model the distance between the actual incident location and its location on the street, if it is important to include that distance in the total travel distance.

Double

AdditionalCost

Double

TargetFacilityCount

Long

Cutoff

Double

CurbApproach

Specifies the direction a vehicle may arrive at and depart from the incident. The field value is specified as one of the following integers (use the numeric code, not the name in parentheses):

• 0 (Either side of vehicle)—The vehicle can approach and depart the incident in either direction, so a U-turn is allowed at the incident. This setting can be chosen if it is possible and practical for your vehicle to turn around at the incident. This decision may depend on the width of the road and the amount of traffic or whether the incident has a parking lot where vehicles can pull in and turn around.
• 1 ( Right side of vehicle)—When the vehicle approaches and departs the incident, the incident must be on the right side of the vehicle. A U-turn is prohibited. This is typically used for vehicles such as buses that must arrive with the bus stop on the right-hand side.
• 2 (Left side of vehicle)—When the vehicle approaches and departs the incident, the curb must be on the left side of the vehicle. A U-turn is prohibited. This is typically used for vehicles such as buses that must arrive with the bus stop on the left-hand side.
• 3 (No U-Turn)—When the vehicle approaches the incident, the curb can be on either side of the vehicle; however, the vehicle must depart without turning around.

Short Integer

Fields

Description

Data type

Name

The name of the facility. The name is used in the driving directions. If the name is not specified, a unique name prefixed with Location is automatically generated in the output routes and directions.

String

ID

A unique identifier for the facility. The identifier is included in the output routes (as the FacilityID field) and the output closest facilities as FacilityID fields. The FacilityID field can be used to join additional information from the output routes, such as the total travel time or total distance, to attributes from your facilities. If the ID isn't specified, the service automatically generates a unique identifier for each facility.

String

AdditionalTime

The amount of time spent at the facility, which is added to the total time of the route. The units for this attribute value are specified by the Measurement Units parameter. The attribute value is included in the analysis only when the measurement units are time based. The default value is 0.

If you are finding the closest fire stations to fire incidents, AdditionalTime can store the time it tends to take a crew to don the appropriate protective equipment and exit the fire station.

Double

AdditionalDistance

The extra distance traveled at the facility, which is added to the total distance of the route. The units for this attribute value are specified by the Measurement Units parameter. The attribute value is included in the analysis only when the measurement units are distance based. The default value is 0.

Generally, the location of a facility, such as a fire station, isn't exactly on a street; it is set back somewhat from the road. AdditionalDistance can model the distance between the actual facility location and its location on the street, if it is important to include that distance in the total travel distance.

Double

AdditionalCost

Double

Cutoff

Double

CurbApproach

Specifies the direction a vehicle may arrive at and depart from the facility. The field value is specified as one of the following integers (use the numeric code, not the name in parentheses):

• 0 (Either side of vehicle)—The vehicle can approach and depart the facility in either direction, so a U-turn is allowed at the facility. This setting can be chosen if it is possible and practical for your vehicle to turn around at the facility. This decision may depend on the width of the road and the amount of traffic or whether the facility has a parking lot where vehicles can pull in and turn around.
• 1 (Right side of vehicle)—When the vehicle approaches and departs the facility, the facility must be on the right side of the vehicle. A U-turn is prohibited. This is typically used for vehicles such as buses that must arrive with the bus stop on the right-hand side.
• 2 (Left side of vehicle)—When the vehicle approaches and departs the facility, the curb must be on the left side of the vehicle. A U-turn is prohibited. This is typically used for vehicles such as buses that must arrive with the bus stop on the left-hand side.
• 3 (No U-Turn)—When the vehicle approaches the facility, the curb can be on either side of the vehicle; however, the vehicle must depart without turning around.

The CurbApproach property was designed to work with both kinds of national driving standards: right-hand traffic (United States) and left-hand traffic (United Kingdom). First, consider a facility on the left side of a vehicle. It is always on the left side regardless of whether the vehicle travels on the left or right half of the road. What may change with national driving standards is your decision to approach a facility from one of two directions, that is, so it ends up on the right or left side of the vehicle. For example, if you want to arrive at a facility and not have a lane of traffic between the vehicle and the facility, you would choose Right side of vehicle (1) in the United States but Left side of vehicle (2) in the United Kingdom.

Short Integer

Field

Description

Data type

Name

The name of the barrier.

String

BarrierType

Specifies whether the point barrier restricts travel completely or adds time or distance when it is crossed. The value for this attribute is specified as one of the following integers (use the numeric code, not the name in parentheses):

• 0 (Restriction)—Prohibits travel through the barrier. The barrier is referred to as a restriction point barrier since it acts as a restriction.
• 2 (Added Cost)—Traveling through the barrier increases the travel time or distance by the amount specified in the Additional_Time or Additional_Distance field. This barrier type is referred to as an added-cost point barrier.

Short

Additional_Time

Indicates how much travel time is added when the barrier is traversed. This field is applicable only for added-cost barriers and only if the measurement units are time based. This field value must be greater than or equal to zero, and its units are the same as those specified in the Measurement Units parameter.

Double

Additional_Distance

Indicates how much distance is added when the barrier is traversed. This field is applicable only for added-cost barriers and only if the measurement units are distance based. The field value must be greater than or equal to zero, and its units are the same as those specified in the Measurement Units parameter.

Double

AdditionalCost

Double

CurbApproach

Field

Description

Data type

Name

The name of the barrier.

String

Field

Description

Data type

Name

The name of the barrier.

String

BarrierType

Specifies whether the barrier restricts travel completely or scales the time or distance for traveling through it. The field value is specified as one of the following integers (use the numeric code, not the name in parentheses):

• 0 (Restriction)—Prohibits traveling through any part of the barrier. The barrier is referred to as a restriction polygon barrier since it prohibits traveling on streets intersected by the barrier. One use of this type of barrier is to model floods covering areas of the street that make traveling on those streets impossible.
• 1 (Scaled Cost)—Scales the time or distance required to travel the underlying streets by a factor specified using the ScaledTimeFactoror ScaledDistanceFactor field. If the streets are partially covered by the barrier, the travel time or distance is apportioned and then scaled. For example, a factor 0.25 would mean that travel on underlying streets is expected to be four times faster than normal. A factor of 3.0 would mean it is expected to take three times longer than normal to travel on underlying streets. This barrier type is referred to as a scaled-cost polygon barrier. It might be used to model storms that reduce travel speeds in specific regions.

Short

ScaledTimeFactor

This is the factor by which the travel time of the streets intersected by the barrier is multiplied. This field is applicable only for scaled-cost barriers and only if the measurement units are time based. The field value must be greater than zero.

Double

ScaledDistanceFactor

This is the factor by which the distance of the streets intersected by the barrier is multiplied. This attribute is applicable only for scaled-cost barriers and only if the measurement units are distance based. The attribute value must be greater than zero.

Double

ScaledCostFactor

Double