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Page Title:
Crossing Evaluation Report -Cont. |
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|  FORM 7 (cont.)
REQUIRED DESIGN SIGHT DISTANCE FOR COMBINATIONS OF
HIGHWAY AND TRAIN VEHICLE SPEEDS
TRAIN
HIGHWAY SPEED IN MPH
SPEED
0
10
20
30
40
50
60
70
10
162
126
94
94
99
107
118
129
20
323
252
188
188
197
214
235
258
30
484
378
281
281
295
321
352
387
40
645
504
376
376
394
428
470
516
50
807
630
470
470
492
534
586
644
60
967
756
562
562
590
642
704
774
70
1129
882
656
656
684
750
822
904
80
1290
1008
752
752
788
856
940
1032
90
1450
1134
844
844
884
964
1056
1160
DISTANCE ALONG HIGHWAY FROM CROSSING ("B")
20
65
125
215
330
470
640
840
NOTE: 1 MPH = 161 KPH
1 FOOT = 304 METERS
SIGHT DISTANCE LOCATION SKETCH:
SIGHT DISTANCE
STOPPED VEHICE SIGHT DISTANCE
TYPICAL
MPH
TYPICAL
MPH
STOPPED SCHOOL BUS = (13.5) (TRAIN SPEED) =
TRAIN
HIGHWAY
SPEED
SPEED
REQUIRED
REQUIRED
STOPPED SEMITRAILER = (17.5) (TRAIN SPEED) =
DISTANCE
DISTANCE
"A"
"B"
NORTHWEST QUADRANT
NORTH EAST QUADRANT
SIGHT OBSTRUCTION
SIGHT OBSTRUCTION
ACTUAL DISTANCE
ACTUAL DISTANCE
"A" ....................FT.
"A"........................FT.
SOUTHWEST QUADRANT
SOUTHEAST QUADRANT
SIGHT OBSTRUCTION
SIGHT OBSTRUCTION
ACTUAL DISTANCE
ACTUAL DISTANCE
"A"...................FT.
DR Form 153, Apr 83 (retyped 4-15-99){Page 3}
B-11
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