GIS Library Contents - Metadata
Traffic Signals locations throughout the greater Tucson valley
GIS Library Contents - MetadataTraffic Signals locations throughout the greater Tucson valley |
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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 | Traffic Signals locations throughout the greater Tucson valley | |
| File name | tsignals | |
| Spatial domain | Tucson valley | |
| Abstract | Traffic signal locations maintained via COT/DOT (TDOT)digiapp. New signals are added via the web into a database. Signal data is maintained/edited through the digiapp. | |
| Known errors/qualifications | Points are digitized by use of the 1998 orthophotos as a backdrop and do not represent the exact location of one or any actual signal heads. The general intersection where the signal is located is shown. | |
| Feature type | point | |
| Feature count | 672 | |
| Thumbnail Map |
tsignals.pdf 
(428,062 bytes, PDF created 07/21/2022 )
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| Projection | NAD83 HPGN (Parameters) | |
| Rectification | orthophoto98 | |
| Field/value metadata | Field metadata | |
| Source organization | City of Tucson/DOT | |
| Source contact | Ron Platt | |
| Source document or file name | ||
| Source date | 20030409 | |
| Source scale | ||
| Source format | Database | |
| Date of last data update (This date may not be current.) | 0000 | |
| Last data update by | Ron Platt | |
| Date/time last touched - Meaning? | 2021-01-07 10:54 PM - Enterprise GDB - Library input format | |
| 2022-06-06 02:36 AM - Shapefile | ||
| See coverage files, if any, for date. | ||
| Lineage | COT/DOT (TDOT)Traffic Engineering enters location of new signal or deletes old one. TDOT maintenance staff adds signal data. | |
| On maintenance? | No | |
| Maintenance organization | COT/TDOT | |
| Maintenance description | COT/DOT (TDOT)Traffic Engineering enters location of new signal or deletes old one through MapGuide. TDOT maintenance staff adds signal data through MapGuide. Then each night the Access database table is exported as a DBF. AML is run to create shapefile. | |
| Original conversion by | Ron Platt | |
| Pima County ITD GIS contact | Steve Whitney | |
| Alternate Pima County ITD GIS contact |  | |
| On Pima County Geospatial Data Portal? | No |
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