Ingrid Del Mar Arocho Hollar, D. A., Rasdorf, W., Liu, M., Hummer, J. E., Arocho, I., & Hsiang, S. M. (2013). Preliminary Engineering Cost Estimation Model for Bridge Projects. Journal of Construction Engineering and Management, 139(9), 1259–1267. https://doi.org/10.1061/(asce)co.1943-7862.0000668 Rasdorf, W., Lewis, P., Marshall, S. K., Arocho, I., & Frey, H. C. (2012). Evaluation of On-Site Fuel Use and Emissions over the Duration of a Commercial Building Project. JOURNAL OF INFRASTRUCTURE SYSTEMS, 18(2), 119–129. https://doi.org/10.1061/(asce)is.1943-555x.0000071 Hollar, D., Arocho, I., Hummer, J., Liu, M., & Rasdorf, W. (2010). Development of a regression model to predict preliminary engineering costs. ITE 2010 Technical Conference and Exhibit compendium of technical papers. Washington, D.C. : Institute of Transportation Engineers.