| Author | Sedtha Siringoenyuang |
| Call Number | AIT RSPR no.TE-03-01 |
| Subject(s) | Roads--Design and construction
|
| Note | A research study submitted in partial fulfillment of the requirements for the
degree of Master of Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. TE-03-01 |
| Abstract | This study aims to estimate the operating speeds on the three-dimensional highway
alignments in Thailand in order to achieve the consistency of highway design. The
inconsistency highway design leads the driver to use the inappropriate operating speed that
may cause road accidents. Existing operating speed models for highway alignment design
in Thailand are mainly based on two-dimensional (2D) analysis. This research, therefore,
intends to develop operating speed models the three-dimensional (3D) two-lane rural
highways in Thailand that cover all types of terrain including mountain terrain, rolling
terrain and level terrain. A method to evaluate the consistency of a design is to verify
operating speeds changes. In this study, several approaches were undertaken to predict
operating speeds for different conditions including horizontal, vertical, and combined
curves. The findings from the different approaches were incorporated into a speed-profile
model. The model can be used to evaluate the design consistency of the highway. The
models will help highway designers to predict operating speed and evaluate design
consistency more accurately. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. TE-03-01 |
| Type | Research Study Project Report (RSPR) |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Transportation Engineering (TE) |
| Chairperson(s) | Yordphol Tanaboriboon; |
| Examination Committee(s) | Aswin Karnasuta ;Hanaoka, Shinya; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2003 |