HowTo: Set up conversions for a drive-time attribute in Network Analyst
【相关信息】
Article ID: 41176
Software:
ArcGIS for Desktop Advanced 10.1
ArcGIS for Desktop Standard 10.1
ArcGIS for Desktop Basic 10.1
Platforms: N/A
【问题描述】
In a network dataset, drive-time attributes are used to measure and model impedances, such as travel time. In many cases, street networks have the necessary elements for a drive-time field. The instructions provided describe how to calculate a drive-time attribute in ArcGIS Network Analyst.
Article ID: 41176
Software:
ArcGIS for Desktop Advanced 10.1
ArcGIS for Desktop Standard 10.1
ArcGIS for Desktop Basic 10.1
Platforms: N/A
【问题描述】
In a network dataset, drive-time attributes are used to measure and model impedances, such as travel time. In many cases, street networks have the necessary elements for a drive-time field. The instructions provided describe how to calculate a drive-time attribute in ArcGIS Network Analyst.
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EsriSupport
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To calculate a drive-time cost attribute in ArcGIS Network Analyst, the following data are required: Base speed field (miles per hour)
Distance units (in miles, feet, or meters)
Add a new double field for the street data using the Field Calculator and one of the following formulas based on the street's units of length.
The following formulas are based on street distance:
Meters
[Length_Field_Meters] / 1609 * 60 / [Speed_Field_MPH]
Kilometers
[Length_Field_Kilometers] / 1.609 * 60 / [Speed_Field_MPH]
Feet
[Length_Field_Feet] / 5280 * 60 / [Speed_Field_MPH]
Miles
[Length_Field_Miles] / [Speed_Field_MPH]
【其它相关参考】
【创建及修改时间】
Created: 5/15/2013
Last Modified: 8/6/2013
【原文链接】
http://support.esri.com/en/kno ... 41176
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