GIS Library Contents - MetadataDrive time rings (0-5 and 5-10 minutes) to an interstate ramp. |
This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.
Descriptive name | Drive time rings (0-5 and 5-10 minutes) to an interstate ramp. | |
File name | dt_int | |
Spatial domain | NAD83 HPGN | |
Abstract | This drive time layer from interstate was developed to be utilized in the parcel overlay services to support Regional Site Selector website. Drive times were created with the "Generate Service Area" tool. The interstate ramp junctions were used as the tool's "Facilities" inputs. The network was built using 2/15/17 stnetall.shp and stspeed.shp to compute a simple time cost associated with each segment. Where speed limits are not expressed in stspeed.shp major facilities were researched in google street view (for state facilities and Aerospace Pkwy) and remainder of segments were assigned a 25 limit. | |
Known errors/qualifications | This simple drive time cost anaylsis is based on speed limit and segment length. | |
Feature type | polygon | |
Feature count | 2 | |
Thumbnail Map | dt_int.pdf (460,010 bytes, PDF created 07/19/2022 ) | |
Projection | NAD83 HPGN (Parameters) | |
Rectification | unknown | |
Field/value metadata | Field metadata | |
Source organization | PAG | |
Source contact | Josh Pope | |
Source document or file name | ||
Source date | 20170215 | |
Source scale | ||
Source format | Unknown | |
Date of last data update (This date may not be current.) | 20170215 | |
Last data update by | Josh Pope | |
Date/time last touched - Meaning? | 2020-11-05 11:04 PM - Enterprise GDB | |
2020-11-05 10:34 PM - Shapefile - Library input format | ||
See coverage files, if any, for date. | ||
Lineage | ||
On maintenance? | Yes | |
Maintenance organization | PAG | |
Maintenance frequency | Varies | |
Maintenance description | ||
Original conversion by | Steve Whitney | |
Pima County ITD GIS contact | Steve Whitney | |
Alternate Pima County ITD GIS contact | ||
On Pima County Geospatial Data Portal? | No |