20241015
11293400
1.0
FALSE
LRSE_HPMS_SectionMovement
2254295.352900
2743735.262100
1199867.013000
1980673.127800
1
002
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_Idaho_TM
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20251017
09572900
20260217
15134100
20000000
5000
FGDC
Idaho Transportation Department (ITD)
Headquarters GIS
208-334-8000
PO Box 7129
Boise
Idaho
83707-1129
US
GIS-Info@itd.idaho.gov
20260217
ArcGIS Metadata
1.0
Roads and Highways - HPMS Section Movement
2017-02-07
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)
HQ Highways Development
208-334-8000
PO Box 7129
Boise
Idaho
83707-1129
US
HPMS-Info@itd.idaho.gov
Transportation
Roads and Highways
Linear Referencing System
LRS
Road Network
Highway Performance Monitoring System
HPMS
Transportation
Roads and Highways
Linear Referencing System
LRS
Road Network
Highway Performance Monitoring System
HPMS
<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
-117.358047
-110.668821
49.026929
41.960501
This extent represents the geographic boundaries of the state of Idaho, United States, covering all roads within the Road Network where HPMS section movement features are located.
0.000000
1273.050000
2017-02-07T00:00:00
This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) HPMS section movement event polyline feature class which identifies the types of at-grade traffic control features and intersection movements present along Idaho’s public roadway segments as reported through the Highway Performance Monitoring System (HPMS). The data supports capacity analysis, operational performance assessment, and safety studies.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) HPMS section movement event polyline feature class identifies signalized and unsignalized intersection control features along roadway segments. These attributes describe signal type, timing characteristics, number of signals, stop control, and other at-grade traffic control devices that influence travel flow and operating conditions. </SPAN></P><P><SPAN>The information is used by traffic engineers, planners, and modelers to assess corridor performance, determine capacity constraints, and support statewide transportation modeling and safety evaluation. Data are reviewed and updated annually as part of ITD’s Highway Performance Monitoring System (HPMS) submittal to the Federal Highway Administration (FHWA).</SPAN></P></DIV></DIV></DIV>
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 HPMS section movement features are included.
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
9460
Roads and Highways - HPMS Section Movement
Idaho Transportation Department
Feature Class
9460
Road Network LRS HPMS Section Movement
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Object ID
OID
4
10
0
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
RouteId
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.
Idaho Transportation Department
String field representing the unique identifier.
Route ID
String
12
0
0
FromMeasure
Starting measure for the record along the road network.
Idaho Transportation Department
Double field representing the measure location.
From Measure
Double
8
38
8
EstablishedDate
Established Date
Date
8
0
0
Date used for events that do smoothing or bulk load processes and need to track based on year start or end date.
Idaho Transportation Department
Date field representing the established date.
ToMeasure
Ending measure for the record along the road network.
Idaho Transportation Department
Double field representing the measure location.
To Measure
Double
8
38
8
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
255
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 Modify Date
Date
8
0
0
SignalType
Signal Type
SmallInteger
2
5
0
1
Uncoordinated Fixed Time - Traffic signals operate on a predetermined timing plan that does not vary based on traffic flow or detection. Each signal functions independently with fixed cycle lengths and phase times.
Idaho Transportation Department
2
Uncoordinated Traffic Actuated - Traffic signals operate independently but adjust timing based on vehicle or pedestrian detection. Signal changes are triggered by sensors or push buttons rather than a fixed schedule.
Idaho Transportation Department
3
Coordinated Progressive - Multiple traffic signals are synchronized along a corridor to allow for continuous vehicle progression through green lights at a planned travel speed. Coordination is based on time-of-day schedules and fixed offsets.
Idaho Transportation Department
4
Coordinated Real-time Adaptive - Traffic signals are coordinated dynamically using real-time traffic data to adjust timing and offsets continuously. This adaptive control system responds automatically to changing traffic patterns to optimize flow.
Idaho Transportation Department
5
No signal systems exist - No active traffic signal control systems are present within the roadway segment.
Idaho Transportation Department
The predominant type of signal system on a sample section. Record values based on the conditions that exist in the inventory direction. Report the signal type and associated control information for segments that include intersections or mid-block traffic control devices.
Idaho Transportation Department
Coded value domain representing the signal type.
PercentGreenTime
Percent Green Time
SmallInteger
2
5
0
The percent of green time allocated for through-traffic at intersections. Report the green phase duration for the major movement or predominant approach, rounded to the nearest whole percent.
Idaho Transportation Department
Whole number representing a percentage.
NumberSignals
Number Of Signals
SmallInteger
2
5
0
A count of at-grade intersections where traffic signals are present.
Idaho Transportation Department
Whole number representing a count.
StopSigns
Stop Signs
SmallInteger
2
5
0
A count of at-grade intersections where stop signs are present.
Idaho Transportation Department
Whole number representing a count.
AtGradeOther
At Grade Other
SmallInteger
2
5
0
A count of at-grade intersections, where full sequence traffic signal or stop sign traffic control devices are not present, in the inventory direction. Describe or code special controls such as roundabouts, flashing beacons, or uncontrolled crossings.
Idaho Transportation Department
Whole number representing a count.
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 Modify
String
255
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
SHAPE.STLength()
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape.STLength()
Double
0
0
0
Enterprise Geodatabase Feature Class
dataset
EPSG
9.5.1(10.8.0)
Simple
FALSE
9460
TRUE
TRUE