The objective of the study is to investigate the cause of double-decker accident by in-depth accident investigation method. The method could describe the critical conditions of the accident which include pre-crash during-crash and post-crash. Moreover the influencing factors of the accident can also be best explained by the method. In this study the rollover of double-decker accident is selected as a case study. The main reason is that in Thailand the double-deckers are usually used for sight-seeing purpose and there are also many reported severe accidents. In this study it is found that the factors of the accident consist of speed dimension of double-decker road condition and geometry of the accident place.

The purpose of this project is to construct a horizontal electric train controlled by the Arduino. For the cost that is cheaper than the market and users can be self - reliant in daily life In which the car size is equal to the electric train that is sold in the general market. The organizers can write an arduino program to control the movement of the car from the joystick lever. The built weighing 25 kilograms is powered by a 12 volt battery that provides power to the circuit to control the direction of the car. The car can support a maximum weight of 100 kilograms and can be adjusted to more than 160 degrees. Experimental results Found that the operation of the electric train is adjustable controlled by Arduino Able to work according to objectives. This Arduino - style electric train can adjust the sitting position to your desired position. The control to change direction can be forced forward backward left right turn from the lever from the joystick as needed. As for the road characteristics it can be used as smooth and sloping roads.

This study was to 1) investigate the using behavior on the road accessories in the park and 2) analyze the design guideline for the product consistent with the use of leisure space in passive way 3) synthesize the design guideline to for the product consistent with the use of leisure space in passive way to response city life and 4) to find solutions to the problems of sustainable use of public space. The conclusion of the data analysis by using questionnaires from residents in the sample area found that; 1) Respondents were 130 men or 43.4% and 170 women or 56.6% 2) the highest average score was from 94 respondents age 31-40 years old or 31.4% 78 respondents age 21-30 years old or 26% 3) 116 respondents or 38.7% were company staffs with the highest score followed with 89 students or 29.7 and 4) 4 respondents or 8.89% who have live less than 20 years 14 respondents or 13.11% age 21-30 years old 12 respondents or 26.67% age 31-40 years old and 15 respondents or 33.33% for age 41 years old up 5) 98 respondents or 32.6% spend time in the park 1-2 times a week 94 respondents or 31.3% 6) 142 respondents or 47.3% for the reason of relaxing in the park- quiet and followed with easy to access 121 respondents or 40.3% and lastly 7) the activities in the park is relaxing 141 respondents or 47%.For design the research design from data analysis and experts. It shows that 1) the main structure is steel tube and nylon product and 2) concept design was from nest and cradle. The feature of the product is like the weaverbirdnest and the cradle gives personal area.

Nowadays car is one of important factors for the human life whereas critical traffic dramatically effects on risk of accident between cars and pedestrians. Therefore the road accident is the enormous loss of human resources. Regarding this problems the lifted mechanism of vehicle hood was concerned and installed on the vehicle hood simulator to mitigate the severe accident in this project. To achieve this the energy absorption was established to decrease the injury of pedestrians by the gap increase between the bottom edge of hood and the engine valve cover. This solution can increase the ability of energy absorption during an accident moment. There were 8 steps of hood gap in this study to in the experimental works indicated by Head Injury Criterion HIC from head-form. The testing program was referred by Pedestrian Protection Test Procedures in EURO NCAP. From the experimental works the increasing gap between the bottom edge of hood and the engine valve cover tends to decrease the values of HIC. By the lowest of HIC the 4th gap is 18 cm of space representing 90.17 and 208.06 of HIC15 and HIC35 respectively. In consequence of experiment the gap between the bottom edge of hood and the engine valve cover plays a role on the HIC value in which it can mitigate the severe injury of pedestrian on accidental way whereas the lifted up mechanism of hood are ability as conjecture.