Data Analytics

Data Analytics Group

The Data Analytics sections are responsible for reporting, maintaining, collecting, analyzing and visualizations for data on roadways in Arizona. This group is also responsible for the Highway Performance Monitoring System (HPMS), the All Roads Linear Referenced Data (ARNOLD), the State Highway Log and providing data for the Model Inventory Roadway Elements (MIRE) report submissions.HPMS is a report due to the Federal Highway Administration (FHWA) each year that encompasses various components of the road network. This group also supplies the extent and travel report and operates the data supply chain for ADOT and local agencies. The program also provides many different visualizations of this data.The Data Analytics section is in partnership with the Geospatial Analysis Section who are the data owners and maintainers for all data sets used by the Data Analytics Section. Also under the Transportation Analysis section is the Traffic Monitoring Group and the Modeling and Forecasting group who we collaborate with regularly.


Highway Performance Monitoring Systems (HPMS)

The Data Analytics section are the project leads for the HPMS Submission. HPMS is a report required to be submitted by all State DOT’s that details status, quality and mileage on a variety of data items on all roadways.


This program includes inventory on all of the Nation's public roads as certified by the States’ Governors annually. All items, like functional classification, pavement, and many more, are reported on regardless of road ownership. Also required for HPMS submission is the total public road mileage, which must be certified by the state DOT Director and the State Governor. This is referred to as Certified Public Miles and is the the sum of all public roads in the state that are, passable with a standard passenger car, not restricted by any gates or other barriers, publicly accessible, and includes BIA lands.


Functional Classification

The Functional Classification (FC) map an official FHWA-approved map. For information about changing the functional classification of a roadway, please visit the Functional classification change request tool.

If you have any questions or requests regarding functional Classification, please contact Sage Donaldson or James Meyer.


Extent and Travel Section

The Extent and travel report is generated on a yearly basis from each HPMS submittal. This is a report that is generated from the HPMS mileage breakdown through the UPACS software.


This report is a breakdown of all mileage reported for HPMS purposes. These mileage classifications can be NHS, by city, or by urban/rural areas. Each of these categories are also broken down by functional classification and gives the total for each functional classifications.


State Highway System Log

Each year, the Data Analytics Section, in partnership with the Geospatial Analysis Section, produces a route-by-route highway inventory for all State Highway System facilities pertaining to the previous calendar year. This inventory documents various features, geometrics, projects and other information as they occur along the route. Updates to the Highway Log are principally derived from completed highway projects and any resolutions passed by the State Transportation Board.


Data Supply Chain Section

The Data Supply Chain is the data sharing mechanism that operates between all levels of government and private entities. This allows local agencies to share their data with the ADOT inorder to create a fully, spatially represented GIS all roads network. By creating, in partnership with Arizona State Lands and ADOA,  an easily accessible data sharing site called AZGeo Data Clearing House, the local agencies can provide their GIS data, which help ADOT to create and maintain the Linear Referencing System (LRS) for ARNOLD purposes. This is required by FHWA by each state to maintain a wholistic GIS network of all roads in the state.

AZGeo Data Hub

AZGeo “We Love Your Input” Change Request Tool

Are you a local agency? Would you like a tutorial on the AZGeo “We Love Your Input” Change Request tool? Reach out to Sage Donaldson ([email protected]) to schedule a tutorial!


Traffic and HPMS

Traffic data reporting is integral to the Highway Performance Monitoring System (HPMS) Report. Coordination between the Data Analytics, Geospatial Analysis, Modeling and Forecasting and Traffic Monitoring group creates the chain of command for the Traffic data. Traffic Monitoring is responsible for the collection of the traffic data on the roadway, Data Analytics and Geospatial Analysis are responsible for analyzing the data, Modeling and Forecasting is responsible for generating Future AADT and Data Analytics is responsible for reporting the data. In 2020, ADOT began a statewide Traffic Count Data Management Program to better the statewide traffic data.


For HPMS, gathering traffic count data from local agencies is extremely important in order to report traffic information statewide. To do this, Local Agencies are advised to load their traffic count data to the Traffic Data Management System (TDMS), MS2. If you are from a local agency and would like guidance on uploading your agencies traffic data to the TDMS, see the story maps below for tutorials, or contact Sage Donaldson to request an in person tutorial. 

For more information on Traffic Monitoring, visit Traffic Monitoring.