Quantification of the Impact of Asphalt Pavement Conditions on Gas Emissions

Oscar D Gonzalez, University of Texas at El Paso


This research develops a methodology to quantify the impact of asphalt pavement conditions on vehicular gas emissions based on statistical analysis to correlate the relationship between asphalt pavement roughness and gas emissions. ANOVA (Analysis of Variance) hypothesis tests were used to compare the factors affecting the results. The roughness was measured with the International Roughness Index (IRI) using a profilometer provided by TxDOT and the gas emissions were measured with a Portable Emission Measurement System (PEMS). This research also presents the savings obtained in gas emissions using different maintenance and rehabilitation strategies established by TxDOT (Preventive Maintenance, Light Rehabilitation, Medium Rehabilitation and Heavy Rehabilitation), it also contains the equations obtained to estimate vehicle gas emissions from asphalt pavement conditions. As a result of this research, the conclusion is that the higher the roughness, the higher the gas emissions; or that the lower the roughness, the lower the gas emissions released.

Subject Area

Engineering|Civil engineering|Environmental engineering

Recommended Citation

Gonzalez, Oscar D, "Quantification of the Impact of Asphalt Pavement Conditions on Gas Emissions" (2017). ETD Collection for University of Texas, El Paso. AAI10743330.