Quantifying the Sustainable Benefits of Preserving Ontario's Flexible Pavement Assets

The Ministry of Transportation Ontario (MTO) is dedicated to maintaining quality roadways in a sustainable manner. MTO has implemented numerous innovative pavement preservation strategies in recent years to maximize cost savings in repair operations and extend pavement life. Flexible pavement preservation treatments are considered sustainable as they improve pavement quality and durability, and extend pavement service life, while reducing energy consumption and Green House Gas (GHG) emissions. This paper outlines the various flexible pavement preservation treatments utilized by MTO to achieve sustainability. These preservation treatments include: crack sealing, slurry seal, micro-surfacing, chip seal, ultra-thin bonded friction course, fibre-modified chip seal, thin hot mix and warm mix asphalt overlays, and Hot In-place Recycling (HIR). The sustainable benefits of flexible pavement preservation are quantified by comparing the energy consumption and GHG emissions generated using the PaLATE software for various flexible pavement preservation strategies against a conventional rehabilitation treatment on a life cycle basis. The results indicate that these innovative pavement preservation strategies significantly reduce energy use, GHG emissions, and contribute to material conservation when compared to traditional treatments. An innovative environmental rating system to promote sustainable preservation of road assets is also discussed. (A) For the covering abstract of this conference see ITRD record number 201402RT334E.

• Corporate Authors:

  Canadian Technical Asphalt Association

  ,   United States 
• Authors:
  • Chan, S
  • Lee, S B
  • Kazmierowski, T
  • Lee, W
• Conference:
  • PROCEEDINGS OF THE FIFTY-EIGHTH ANNUAL CONFERENCE OF THE CANADIAN TECHNICAL ASPHALT ASSOCIATION (CTAA): ST. JOHN'S, NEWFOUNDLAND AND LABRADOR, NOVEMBER 2013
• Publication Date: 2013

Language

• English

Media Info

• Pagination: p. 1-14
• Monograph Title: Proceedings of the Fifty-Eighth Annual Conference of the Canadian Technical Asphalt Associatio (CTAA): St. John's, Newfoundland and Labrador, November 2013

Subject/Index Terms

• TRT Terms: Bituminous mixtures; Chippings; Cold coated materials; Conferences; Cracking; Energy; Evaluation; Field tests; Flexible pavements; Greenhouse effect; Joint sealing; Maintenance; Pollutants; Recycling; Repairing; Seal coats; Structural strengthening; Sustainable development
• Geographic Terms: Canada
• ITRD Terms: 4967: Bituminous mixture; 8018: Canada; 4585: Chippings; 4988: Cold coated material; 8525: Conference; 5211: Cracking; 2442: Emission; 213: Energy; 9020: Evaluation (assessment); 2944: Flexible pavement; 2451: Greenhouse effect; 6226: In situ; 3608: Joint sealing; 3847: Maintenance; 4573: Recycling (mater); 3635: Repair; 2973: Sealing coat (on top of the surfacing); 3096: Strengthening (pavement); 2427: Sustainability
• Subject Areas: Energy; Highways; Maintenance and Preservation; I31: Bituminous Binders and Materials; I60: Maintenance;

Filing Info

• Accession Number: 01518080
• Record Type: Publication
• Source Agency: Transportation Association of Canada (TAC)
• Files: ITRD, TAC
• Created Date: Mar 11 2014 11:00AM