A Resource Survey of Lateritic Soils and Impact Evaluation toward Community Members Living Nearby the Excavation Pits
The objectives of the research are to find the basic engineering properties of lateritic soil and to predict the impact on community members who live nearby the excavation pits in the area of Amphur Pak Thor, Ratchaburi Province in the western area of Thailand. The research was conducted by collecting soil samples from four excavation pits for basic engineering properties, testing and collecting questionnaire data from 120 community members who live nearby the excavation pits, and applying statistical analysis. The results found that the basic engineering properties of lateritic soil can be classified into silt soil type which is cohesionless as the loess or collapsible soil which is not suitable to be used for a pavement structure for commuting highway because it could lead to structural and functional failure in the long run. In terms of opinion from community members toward the impact, the highest impact was on the dust from excavation activities. The prediction from the logistic regression in terms of impact on community members was at 84.32 which can be adapted and applied onto other areas with the same context as a guideline for risk prevention and risk communication since it could impact the infrastructures and also impact the health of community members.
 Ministry of Natural Resources and Environment, Lateritic Soil Utilization (Central Region, Summary Report, Office of Natural Resources and Environmental Policy and Planning.
 S. Prampet, Cement and Fly Ash Stabilization of Lateritic Soil, Master Engineering of Civil Engineering, Graduate School, Kasetsart University, 2003.
 P. Vijarnson, “Skeletal Soils of Thailand,” In Proceedings of Fifth ASEAN Soil Conference, vol. 1, Department of Land Development. Ministry of Agriculture and Cooperatives. Bangkok, Thailand, 1984.
 K. Vanichbuncha, Multivariate Analysis, 3rd ed. Bangkok: Dharmasarn Printing, 2008.
 ASTM D 4318, Standard Test Methods for Liquid Limit, Plastic Limit and Plasticity Index of Soils, Retrieved, August 15, 2017, from https://kashanu.ac.ir/Files/D%204318%20-%2000%20%20_RDQZMTG_.pdf, 2000.
 ASTM D 854-10, Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer, Retrieved, August 15, 2017, from https://kashanu.ac.ir/Files/D%20854%20%E2%80%93%2002%20%20_RDG1NA__.pdf, 2002.
 H. J. Morrison, Report on Research and Development Propagation for Laterite, Lateritic Soils, and Highway Construction in the Kingdom of Thailand, J.E. Greiner, Baltimore, Maryland, U.S.A., 1965.
 N. Mahasirikuland, P. Punrattanasin, “Measurement of Contaminated Sorption in Khon Kaen Soils from Laboratory,” The 3rd Technology and Innovation for Sustainable Development International Conference. March 4-6, 2010. Nong Khai, Thailand, 2010.
 Department of Highways, Standard of Soil-Aggregate Subbase for Highways, Standard No. DH-S 205/2532 Retrieved, September 4, 2017, from http://www.doh.go.th/doh/images/aboutus/standard/01/dhs205-32.pdf, 1989.
 A. Jotisankasa, B. Vardhanabhuti, W. Phuphat, S. Seawsirikul, A. Prabmak, & S. Chungopast, Drafting manual for the interpretation of soil and rock properties used in highway engineering design (2552 B.E.), Bangkok: Kasetsart University Research and Development Institute, 2010.
 Department of Disease Control, Guidelines for surveillance of risky areas from air pollution in case of Particulate Matter, 2nd ed. Bangkok: The Agricultural Cooperative Federation of Thailand, 2015.
 WHO (World Health Organization), Air Quality Guidelines Global Update 2005, WHO Regional Office for Europe, Retrieved, November 1, 2017, from http://www.euro.who.int/_data/assets/pdf_file/0005/78638/E90038.pdf, 2005.