GIS Library Contents - Metadata Automatic Road Analyzer(ARAN) van local road GPS points - 2008, 2009, 2010

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		Automatic Road Analyzer(ARAN) van local road GPS points - 2008, 2009, 2010
File name		stvl2010
Spatial domain		Eastern Pima County
Abstract		This layer is a compilation of the data captured in the years 2008, 2009 and 2010 for the three phases of local road collections. As the van is driven, a data point is captured every 26.4 feet by GPS, along with 2 image frames for each point. International Roughness Index (IRI) and Pavement Surface Evaluation and Rating (PASER) data is attributed to each data point, with IRI automatically captured by a sensor, and PASER data input by the van personnel. Data points are captured from driving in both directions, when not driving on a one-way road, therefore data points are available for both sides of a road.
Known errors/qualifications
Feature type		point
Feature count		667,677
Thumbnail Map		stvl2010.pdf    (7,623,838 bytes, PDF created 07/20/2022 )
Projection		NAD83 HPGN (Parameters)
Rectification		GPS
Field/value metadata		Field metadata
Source organization		City of Tucson
Source contact
Source document or file name
Source date		2010
Source scale
Source format		Unknown
Date of last data update (This date may not be current.)		20120403
Last data update by		Felipe Morales
Date/time last touched - Meaning?		2021-02-08  11:45 PM - Enterprise GDB
		2021-02-08  11:07 PM - Shapefile - Library input format
		See coverage files, if any, for date.
Lineage		PCDOT pavement management (PM) data is stored and retrieved from the CarteGraph system. The PM data is stored by road segment within CarteGraph, and brought into the GIS through the implementation of a Linear Referencing System (LRS)/Dynamic Segmentation (DynSeg). An LRS/DynSeg allows the PM data to be integrated into the GIS without the need to modify the underlying geometry of the road network. The GIS road network's geometry is segmented from intersection to intersection, and PM segments can span multiple GIS segments and/or stop and begin at a distance that is offset from an intersection.
On maintenance?		No
Maintenance organization
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

 GIS Library Data Layer Metadata