Open Data

Physical Condition of Provincial Highway Surfaces, Alberta

Description

This Alberta Official Statistic describes the physical condition of Alberta’s highways. The International Roughness Index (IRI) is used to measure the roughness of roads and is used as a sole measurement to categorize overall physical condition. The average IRI value is calculated over every 50 metre segment of the Alberta highway network. This detailed data is further averaged over one kilometre sections to provide an assessment of condition. This information is used to assess and sustain the quality of the paved highway network, in support of efficient movement of commuter, business, commercial, and pleasure traffic. The preservation of pavement quality through regular rehabilitation reduces the total life cycle cost of the highway system, improving return on investment for Albertans.

Tags
AOS Alberta Official Statistics Physical Condition Provincial Highway Surfaces
Resources

Title and Dataset Information

Date Modified

2018-06-29

Update Frequency

Annual

Publisher / Creator Information

Creator
Transportation
Publisher

Transportation

Subject Information

Start Date

2008-04-01

End Date

2018-06-29

Spatial Coverage

Alberta

Resource Dates

Date Created

2015-05-13

Date Added to catalogue

2015-05-13T19:26:15.129312

Date Issued

2013-05-28

Date Modified

2018-06-29

Audience information

Identifiers

Usage / Licence

Usage Considerations

The International Roughness Index (IRI) is used to measure the roughness of roads and is used as a sole measurement to categorize overall physical condition of provincial highways. The identification of highways as good, fair or poor relies on criteria established as a result of a comprehensive research study conducted on the government’s behalf by the University of Calgary in 2002 of road conditions and other performance measures. The values are categorized by highway classification and are compiled into one-kilometre segments. The source IRI data was collected and processed by external consultants. Data received was reviewed and used by Alberta Transportation staff in the performance measure analysis. After existing good, fair, poor segments are identified, anticipated work activities and pavement deterioration rates are used to determine future performance targets.

Contact

Contact Name

Office of Statistics and Information

Contact Email

osi.support@gov.ab.ca

Contact Other

(780) 427-2071