20241015 11260800 1.0 FALSE LRSE_MilePostSignOneMile 2254295.352900 2743212.461900 1199867.013000 1980420.356900 1 002 Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) NAD_1983_Idaho_TM <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>PROJCS[&quot;NAD_1983_Idaho_TM&quot;,GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Transverse_Mercator&quot;],PARAMETER[&quot;False_Easting&quot;,2500000.0],PARAMETER[&quot;False_Northing&quot;,1200000.0],PARAMETER[&quot;Central_Meridian&quot;,-114.0],PARAMETER[&quot;Scale_Factor&quot;,0.9996],PARAMETER[&quot;Latitude_Of_Origin&quot;,42.0],UNIT[&quot;Meter&quot;,1.0],AUTHORITY[&quot;EPSG&quot;,8826]]</WKT><XOrigin>-3120900</XOrigin><YOrigin>-13447900</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>16093472.186944377</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>6.2136994949494945e-07</MTolerance><HighPrecision>true</HighPrecision><WKID>102605</WKID><LatestWKID>8826</LatestWKID></ProjectedCoordinateSystem> 20251009 11043700 20260204 9462200 FGDC 20000000 5000 Idaho Transportation Department (ITD) Headquarters GIS 208-334-8000 PO Box 7129 Boise Idaho 83707-1129 US GIS-Info@itd.idaho.gov 20260204 ArcGIS Metadata 1.0 Roads and Highways – Milepost Signs (One Mile) 2024-05-01T00:00:00 vector digital data Idaho Transportation Department (ITD) Headquarters GIS 208-334-8000 PO Box 7129 Boise Idaho 83707-1129 US GIS-Info@itd.idaho.gov Idaho Transportation Department (ITD) This dataset was developed and provided by the Idaho Transportation Department (ITD). Users should credit ITD as the original source when utilizing or referencing this information in maps, reports, or applications. Idaho Transportation Department (ITD) Headquarters GIS 208-334-8000 PO Box 7129 Boise Idaho 83707-1129 US GIS-Info@itd.idaho.gov Transportation Roads and Highways Linear Referencing System LRS Road Network Transportation Roads and Highways Linear Referencing System LRS Road Network <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Spatial Data Disclaimer - The Idaho Transportation Department (ITD) provides this geographic data any any associated metadata "as is" without warranty of any kind, including but not limited to its completeness, fitness for a particular use, or accuracy of its content, positional or otherwise. It is the sole responsibility of the user to determine the usability of the data for their purposes. In no event shall ITD have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind arising out of the use of or reliance on the geographic data or metadata. In providing this data or access to it, ITD assumes no obligation to assist the user in the use of such data or in the development, use, or maintenance or any applications applied to or associated with the data or metadata.</SPAN></P></DIV></DIV></DIV> Esri ArcGIS 13.3.4.52636 1 -117.357894 -110.676104 49.024655 41.960501 This extent represents the geographic boundaries of the state of Idaho, United States, covering all routes and roads within the Road Network where milepost sign features are located. 2024-05-01T00:00:00 0.000000 1273.050000 This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) milepost signs one mile event point feature class that includes the geospatial location of the milepost signs in the field. <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Idaho Transportation Department's (ITD) Roads and Highways Linear Referencing System (LRS) milepost signs one mile event point feature class shows the sign locations along the state highway system within Idaho. The mileposts create a system of linear referencing that allows for consistent record-keeping and administrative tasks related to road management.</SPAN></P></DIV></DIV></DIV> 7767 Roads and Highways – Milepost Signs (One Mile) Idaho Transportation Department Feature Class 7767 Road Network LRS Milepost Signs (One Mile) OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. OBJECTID OID 4 10 0 RID Route ID String 12 0 0 Idaho Transportation Department The Route ID is created by the following in order: - 5 unique numbers - Designation of A (Ascending) or D (Descending) - Designation of IN (Interstate), US (United States Highway), SH (State Highway), OH (Off Highway), FD (Federal Route), or PO (Polygon/Political Boundary) - Highway number (i.e., 184, 093, etc.) or 000 for all other routes. String field representing the unique identifier. MEAS Measure Double 8 38 8 Idaho Transportation Department Measure of the event along the road network. Double field representing the measure location. SHSNumber State Highway Number Integer 4 10 0 Idaho Transportation Department The number designation of the state highway system road (i.e. 75, 93, 184). This is a domain field with a value for every highway number in the state highway system. Coded value domain representing the highway number. SignType Sign Type String 20 0 0 Idaho Transportation Department Designation for the type of state highway system road. This is a domain field with values for Interstate, United States, and Idaho. Coded value domain representing sign type. LoopSpur Loop Spur String 20 0 0 Idaho Transportation Department Name of business loop or spur off the main state highway system road, normally a city name (i.e. Boise, Idaho Falls, etc.). Field is null for all main route segments. This is a domain field with a value for every business loop and spur name in the state highway system. Coded value domain representing the loop/spur. RouteType Route Type String 20 0 0 Idaho Transportation Department The state highway system route type. Main Route This encompasses all main state highway system routes, as well as rest area and port of entry locations. Idaho Transportation Department Spur Spur off main state highway system routes. Idaho Transportation Department Business Loop Business Loop off main state highway system routes. Idaho Transportation Department SH Connector State Highway connector segments are small connectors between two state highways. Idaho Transportation Department FA Connector Federal Aid connector segments are small connectors between two federal aid routes that are not on the state highway system. Idaho Transportation Department Back Cntry Bw State highway system route is a designated Back Country Byway. Idaho Transportation Department Scenic Byway State highway system route is a designated Scenic Byway. Idaho Transportation Department Historic Rte State highway system route is a designated Historic Route. Idaho Transportation Department Sc Bw/Hist Rt State highway system route is a designated Scenic Byway and Historic Route. Idaho Transportation Department Coded value domain representing the loop/spur type. RouteName Route Name String 20 0 0 Idaho Transportation Department Concatenation of the state highway system sign type and route number (i.e. I-15, US-93, etc.). This is a domain field with a value for every route name in the state highway system. Coded value domain representing the route name. MilePostSigns Mile Post Signs Double 8 38 8 Idaho Transportation Department Mileage number for location along the state highway system road, which normally increases on roads from west to east and north to south. Double field representing the milepost mileage. TravelDirection Travel Direction String 20 0 0 Idaho Transportation Department The direction of travel in reference to geometric measures. This is a domain field with values for Ascending, Descending, or Both. Coded value domain representing travel direction. MilePostType Mile Post Type String 20 0 0 Idaho Transportation Department Type of milepost sign along a state highway system road. Mile Marker Sign that lists the milepost mileage. Idaho Transportation Department Equation Sign that lists the milepost mileage equation (equation forward, backward, or both). Idaho Transportation Department Mile Marker/Equation Sign that lists both the milepost mileage and equation (equation forward, backward, or both). Idaho Transportation Department Coded value domain representing the milepost type. EquationAhead Equation Ahead Double 8 38 8 Idaho Transportation Department The milepost equation in relation to the ascending direction of the state highway system road it resides along. Double field representing the equation ahead. EquationBehind Equation Behind Double 8 38 8 Idaho Transportation Department The milepost equation in relation to the descending direction of the state highway system road it resides along. Double field representing the equation behind. EquationTravelDirection Equation Travel Direction String 20 0 0 Idaho Transportation Department The direction of travel in reference to the milepost equation in regard to geometric measures. This is a domain field with values for Ascending, Descending, or Both. Coded value domain representing travel direction. SHAPE Feature geometry. Esri Coordinates defining the features. SHAPE Geometry 8 0 0 FromDate The date the record was active (this can be the same date it was created or any other date in the past to 2/7/2017) in the system. Idaho Transportation Department Date field representing the beginning date. From Date Date 8 0 0 ToDate The date the record was retired in the system. If this field is null then the record is still active. Idaho Transportation Department Date field representing the end date. To Date Date 8 0 0 EventId This is an auto-generated string field to ensure uniqueness across the system. Idaho Transportation Department String field that is auto-generated by the system. Event ID String 38 0 0 LocError The location error field indicates if there are data quality issues for Linear Referencing System (LRS) events, showing a status in the event layer's attribute table, with "No Error" meaning the event is accurate and any other status indicates a problem that needs resolution. It helps identify issues like events not being correctly located on a route or events created with incorrect measures that must be updated to ensure accurate data representation. Idaho Transportation Department String field representing a location error. Location Error String 100 0 0 SystemCreateDate The date that the record was created in the system. This date does not have to match the From Date or the Established Date fields. Idaho Transportation Department Date field that is auto-generated by editor tracking. System Create Date Date 8 0 0 UserCreate The username who created the record in the system. Idaho Transportation Department String field that is auto-generated by editor tracking. User Create String 50 0 0 SystemModifyDate The date that the record was modified in the system. This date does not have to match the From Date or the Established Date fields. Idaho Transportation Department Date field that is auto-generated by editor tracking. System Modified Date Date 8 0 0 UserModify The username who last modified the record in the system. At first creation, this will match the User Create field, but will change as the record is modified. Idaho Transportation Department String field that is auto-generated by editor tracking. User Modified String 50 0 0 GlobalID A Universally Unique Identifier (UUID) that is automatically generated and assigned to a feature. This field is not editable by users and is maintained by the software. Esri Global ID field that is auto-generated by the system. GlobalID GlobalID 38 0 0 Enterprise Geodatabase Feature Class dataset EPSG 9.5.1(10.8.0) Simple FALSE 7767 TRUE TRUE The Idaho Transportation Department (ITD) implemented ArcGIS Roads and Highways in 2018, which is a Linear Referencing System (LRS) that manages road and highway data. It uses a data model with feature classes for routes, centerlines, and events to store and maintain roadway information, enabling accurate location management and analysis. The Idaho Transportation Department (ITD) first implemented a Linear Referencing System (LRS) for managing road data in the 1970s, which was a mainframe-based system called the Milepoint and Coded Segment System (MACS System). In 2012, the LRS was migrated off the mainframe to Network Manager (NetMan). And finally in 2018, the LRS migrated to ArcGIS Roads and Highways. Editing stopped in NetMan in early 2017 for the migration to Roads and Highways, which is why the earliest "From Dates" on the data layers is 02/07/2017. 2017-02-07T00:00:00 The dataset follows established standards and conventions for logical consistency. All data elements are structured and formatted according to predefined rules, with validation processes in place to confirm consistency and accuracy. The dataset has been reviewed to ensure all relevant milepost sign features are included.