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A STUDY OF SAFETY AT U-TURN IN BANGKOK AND SURROUNDING AREA

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Name of Institution : Faculty of Engineering, Sripatum University Year of Publication : B.E. 2551

_____________________________________________________________________________________

ABSTRACT

The primary goal of this research is to identify the black spots of U-Turn in Bangkok and Surrounding Area. There are a total of 228 U-Turns used for analyzing process in this study. Three methods of identifying black spots of U-Turn (namely the accident frequency method, accident rate method, and rate quality control method) were used in this research. The most hazardous location of U- Turn was found to be at KM 4+700 of Theparuk road. (Highway Number 3268). After determining the black spots of U-Turn, the further recommendation for further actions can be made to reduce the accident for Theparuk road by implementing traffic conflict technique method. This study recommend to have one more traffic lane for through traffic in order to reduce the conflict at this U-Turn.

Keywords : Black Spot of U-Turn , Theparuk Road, Identifying Black Spots of U-Turn

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(48)

A. Faghri and S. Panchanathan. “Application of Geographic Information Systems to Rail- Highway Grade Crossing Safety.” Transportation Research Record. (1495); 1995.

D. Harkey, and R. Ruiz. “HISAM: An Accident Data Base Manager.”, Transportation Research Board. (1238): 37 – 44; 1989.

Fouad A. Gharaybeh. “Identification of Accident-Prone Locations in Greater Amman.”

Transportation Research Board. (1318): 70 – 74; 1991.

L. Troxel. “Development of Models to Predict Injury in Roadside Accidents.” Ph.D.

Dissertation, Department of Civil and Environmental Engineering (Vanderbilt University), 1994.

Supornchai Utainarumol. “GIS Applications for Identifying Hazardous Locations and Evaluating Various Hazardous Location Algorithms.” Ph.D. Dissertation, Department of Civil and Environmental Engineering (Vanderbilt University), 1998.

T.Chira-Chavala and King K.Mak. “Identification of Accident Factors on Highway Segments:

A method and Applications.” Transportation Research Board. (1068): 52 – 58; 1986.

(49)

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(50)

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(52)

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(53)

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(54)

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309 15+200!"  -  ,%%,!*%%$#%,!* 1 48317 3 0.018901 0.110028 0.171784

309 3+300!"  -  ,%%,!*%%$#%,!* 1 48317 3 0.018901 0.110028 0.171784

(55)

338 6+700 - 4 (%,! $ 1 50214 3 0.018187 0.108707 0.167303

338 3+600 - 4 (%,! $ 1 50214 3 0.018187 0.108707 0.167303

338 3+300 - 4 (%,! $ 1 50214 3 0.018187 0.108707 0.167303

3268 22+600 -  1 50273 3 0.018166 0.108667 0.167168

3268 8+400 -  1 50273 3 0.018166 0.108667 0.167168

3268 0+800 -  1 51080 3 0.017879 0.10813 0.165344

3268 0+400 -  1 51080 3 0.017879 0.10813 0.165344

3312 14+400 " 1 - % 16 *! 1 51269 3 0.017813 0.108006 0.164923

3312 7+000 " 1 - % 16 *! 1 51269 3 0.017813 0.108006 0.164923

3312 6+600 " 1 - % 16 *! 1 51269 3 0.017813 0.108006 0.164923

3312 6+000 " 1 - % 16 *! 1 51269 3 0.017813 0.108006 0.164923

3312 2+900 " 1 - % 16 *! 1 51269 3 0.017813 0.108006 0.164923

3312 7+100 " 1 - % 16 *! 1 51269 3 0.017813 0.108006 0.164923

309 3+400!"  -  ,%%,!*%%$#%,!* 1 58443 3 0.015626 0.103801 0.15054

3310 8+300 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

3310 6+100 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

3310 5+400 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

3310 5+300 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

3310 5+200 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

3310 3+900 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

3310 6+800 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

3310 3+200 , %% - $*34% 1 1 59297 3 0.015401 0.103356 0.14901

305 4+100 " 1( ) - */! *! 1 59345 3 0.015389 0.103332 0.148925

305 7+000 " 1( ) - */! *! 1 59345 3 0.015389 0.103332 0.148925

3202 7+800 6 - #  1 $ 1 59898 3 0.015247 0.10305 0.147954

351 6+500;, - $ 1 59898 3 0.015247 0.10305 0.147954

34 36+500 .35+600 - .46+000 0# 1 60001 3 0.01522 0.102998 0.147775

9 46+000 (" ) *!) - " *! 1 62691 3 0.014567 0.101687 0.143257

9 42+900 (" ) *!) - " *! 1 62691 3 0.014567 0.101687 0.143257

9 37+700 (" ) *!) - " *! 1 62691 3 0.014567 0.101687 0.143257

1 62+800 # - !"  $#%,!* 1 67305 3 0.013569 0.099638 0.136179

34 " 41+100 3 ( ) - .46+000 0# 1 70539 3 0.012947 0.098334 0.13166

3256 15+500 ": (# ) - $! 1 71301 3 0.012808 0.09804 0.130643

32 58+600 " # # - .68+000$#%,!* 1 77861 3 0.011729 0.095708 0.122551

3 28+000!" - #$% & # 1 77982 3 0.011711 0.095668 0.122412

3 26+800!" - #$% & # 1 77982 3 0.011711 0.095668 0.122412

(56)

4  , %%-.26+600 41 % 1 1 84378 3 0.010823 0.093686 0.115527

1 58+100 " ) *! -  $#%,!* 1 85000 3 0.010744 0.093506 0.114902

1 57+300 " ) *! -  $#%,!* 1 85000 3 0.010744 0.093506 0.114902

1 58+000 " ) *! -  $#%,!* 1 85000 3 0.010744 0.093506 0.114902

304 7+000 . -  %% . ! 1 85983 3 0.010621 0.093226 0.113929

304 3+800  %% . - "!! $ 1 86386 3 0.010572 0.093113 0.113536

4  , %%-.36+700 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.34+900 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.33+000 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.31+900 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.29+200 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.27+100 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.26+800 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.26+400 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 4  , %%-.29+300 41+067(" ) % 1% 1 1 88075 3 0.010369 0.092647 0.111919 35 #$"8!33+000 (& #)-.53+875(" )!% 1 88674 3 0.010299 0.092485 0.111357 35 #$"8!36+400 (& #)-.53+875(" )!% 1 88674 3 0.010299 0.092485 0.111357

304 9+000  %% . - . ! 1 90309 3 0.010112 0.092053 0.109855

304 3+200  %% . - . ! 1 90309 3 0.010112 0.092053 0.109855

1 73+700  - " ) #! $#%,!* 1 91989 3 0.009928 0.091621 0.108357

1 71+300  - " ) #! $#%,!* 1 91989 3 0.009928 0.091621 0.108357

1 74+500  - " ) #! $#%,!* 1 91989 3 0.009928 0.091621 0.108357

35 " 1+400 303 (%# ) - #$"8 $ 1 94514 3 0.009663 0.090995 0.106187

304 1+900 "!! - "!! $ 1 96834 3 0.009431 0.090444 0.104275

304 1+200 "!! - "!! $ 1 103974 3 0.008783 0.088872 0.098832

338 17+300 - .17+830 $ 1 119561 3 0.007638 0.085973 0.088845

338 15+000 - .17+830 $ 1 119561 3 0.007638 0.085973 0.088845

9 35+500 - ! 1 162767 3 0.005611 0.080364 0.069816

31 19+300 %% . - $ 1 173551 3 0.005262 0.07932 0.06634

31 16+000 %% . - $ 1 173551 3 0.005262 0.07932 0.06634

Ra = 0.050005

การศึกษาความปลอดภัยบริเวณจุดกลับรถในกรุงเทพมหานครและจังหวัดใกล้เคียง

!" # $

A STUDY OF SAFETY AT U-TURN IN BANGKOK AND SURROUNDING AREA

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Name of Institution : Faculty of Engineering, Sripatum University Year of Publication : B.E. 2551

_____________________________________________________________________________________

ABSTRACT

Keywords : Black Spot of U-Turn , Theparuk Road, Identifying Black Spots of U-Turn

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