2014-07-22_PWETC_AgendaPacket - Laserfiche WebLink

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Table 1011-4 Width of Street X Speed Limit of Street X (in feet) 30 mph 35 mph 40 mph 45 mph 50 mph 16-20 155 190 220 290 350 21-25 170 205 245 300 365 26-30 185 225 265 330 400 31-35 200 245 290 360 435 36-40 215 265 310 390 470 41-45 230 280 330 420 505 46-50 250 300 355 450 540 51-55 265 320 375 475 575 56-60 280 340 400 505 610 d. One-way Stop: The visibility triangle for a one-way stop at a T -intersection shall be the same as for the two-way stop. e. Two-way Yield: The visibility triangle for a two-way yield controlled intersection shall be described as follows (Street Y has yield control): i. Point A: Located at the intersection of the center line of Streets X and Y. ii. Point B: Located on the center line of Street Y at a distance from Point A equal to half the width of Street X plus 50 feet. idth ofz Street X Distance from Point A to Point S = )+ 50 feet ii. Point C: Located on the center line of Street X at a distance in feet from Point A given by Table 1011-5, according to the speed limit of Street X. Table 1011.5 Speed Limit of Street X or Y (in miles per hour) 30 35 40 Distance from Point A(in feet) 1 110 140 1 180 f One-way Yield: The visibility triangle for a one-way yield at a T -intersection shall be described the same as for the two-way yield. g. Special: The visibility triangle for all other types of controlled intersections shall be described as combinations of the above visibility triangles. 2. Uncontrolled Street Intersections: a. Four -leg and Three -leg Intersections: Other than T -intersections, the visibility triangle for these types of intersections shall be described as follows: i. Point A: Located at the intersection of the center lines of Streets X and Y. ii. Point B: Located on the center line of Street Y at a distance from Point A given by Table 1011-5, according to the speed limit of Street Y. iii. Point C: Located on the center line of Street X at a distance from Point A given by Table 1011-5, according to the speed limit of Street X. b. T -Intersections: The visibility triangle shall be determined as for T -intersections with a one-way yield. c. Roundabout Intersections: No visibility triangle is necessary at roundabout intersections because all traffic circulates in the same counterclockwise direction. 3. Intersections of Streets with Driveways (or Alleys): The visibility triangle for the intersection of a street with a driveway shall be described as follows.