| Author | Phaniet Saraithong |
| Call Number | AIT Thesis no. 163 |
| Subject(s) | Signs and sign-boards
Traffic signs and signals
|
| Note | A thesis submitted in partial fulfillment of the requirements
for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | From existing data on the static legibility and dynamic legibility
of Thai-character highway signs, statistical methods were used to
analyze the effective similarity of place-name signs and instruction signs. A further analysis was made of the degree of correlation between each of the variables (height, width, stroke width, character spacing, and line spacing) and the legibility distance. Having established the validity of employing only place-name signs for the experiments,
further research was conducted on one-line place-name signs, for both dynamic and glance legibility. In the experimental signboards, the height and the stroke width were each kept constant and the width and
spacing between characters were varied within practical limits. Fifty volunteer subjects were tested in the laboratory under simulated driving
conditions. The results of the experiments led to determination of the optimum ratio of character spacing to height for each width of character, and the optimum ratio of width to height, for the greatest legibility distance. Statistical methods were used to find the linear relationship
and the degree of correlation between the dynamic legibility distance and the glance legibility distance for the 30 place-name signs utilized in the research |
| Year | 1967 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Jones, John Hugh |
| Examination Committee(s) | Michelin, F. S. ; Chai Muktabhant |
| Degree | Thesis (M. Eng.) - SEATO Graduate School of Engineering, 1967 |
