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New Generation Sensors and Applications: New Generation Sensors
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LIDAR Surveys for Road Design in Thailand
Mr. Chanchai Techashongs
Department of Highway, Bangkok, Thailand;
Maj.Gen. Lek Chudasuta
Royal Thai Survey Department, Bangkok, Thailand;
Dr. Phisan Santitamnont
Chulalongkorn University, Bangkok, Thailand ,
E-mail: phisan@chula.com
Dr. Rejean Simard
Lasermap Asia , Kuala Lumpur, Malaysia,
E-mail: rejean@lasermap.com
Mr. Pierre Belanger
GPR Consultants Lasermap, Boisbriand, Canada,
E-mail: pierreb@lasermap.com
ABSTRACT
Concerned with environmental and drainage problems associated with road infrastructure that
can greatly affect the populations located in its vicinity, the Department of Highways of
Thailand (DOH) is looking for ways to minimize the impact of new road construction and
maintenance. In particular, roads and highways often need to be built in high-risk and sensitive
areas such as hilly, unstable terrain. LiDAR technology is of great interest to DOH as its use can
make them save enormous amounts of time and money by providing highly precise elevation
data in all kinds of environments including harsh and rugged areas. Generally, survey and
design for a common highway requires about 7-8 months for completion while major projects
require at least 12 months. Among the many technological improvements introduced over the
past years, GIS has been adopted to a certain extent to enhance survey and design capability
development. The integration of LiDAR-produced digital elevation models into their existing
GIS databases will greatly improve DOH's capacity and efficiency in highway design and
associated steps.
LaserMap GPR Consultants of Canada is undertaking, together with DOH, Royal Thai Survey
Department and Chulalongkorn University, a pilot study located near the New Bangkok
International Airport that aims to demonstrate the usefulness and practicality of using this kind
of surveys for road construction and maintenance projects in Thailand.
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