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01 A Truck Rollover Warning (W1-13) sign (see Figure 2C-1) may be used to warn drivers of vehicles with a high center of gravity, such as trucks, tankers, and recreational vehicles, of a curve or turn where geometric conditions might contribute to a loss of control and a rollover as determined by an engineering study. Support:

A W1-1 warning sign is located 625 feet in advance of the curve, and the overhead sign is located in the point of curvature. The radar is set to start processing the speed data about 300 feet before a vehicle reaches the overhead sign.

A Truck Rollover Warning (W1-13) sign (see Figure 2C-1) may be used to warn drivers of vehicles with a high center of gravity, such as trucks, tankers, and recreational vehicles, of a curve or turn having geometric conditions that are prone to cause such vehicles to lose control and overturn.

The Turn (W1-1) horizontal alignment warning sign is used to advise motorists of a change in the roadway alignment. This sign is used instead of a Curve (W1-2) sign in advance of curves that have advisory speeds of 30 mph or less.

A Winding Road (W1-5) sign may be used instead of multiple Turn (W1-1) or Curve (W1-2) signs where there are three or more changes in roadway alignment each separated by a tangent distance of less than 600 feet.

2024年3月20日 · Warning Signs. W1-1 Turn; W1-1aL Left turn w/speed; W1-1aR Right turn w/speed; W1-2 Curve; W1-2aL Left curve symbol w/speed; W1-2aR Right curve symbol w/speed; W1-3 Reverse turn; W1-4 Reverse curve; W1-5 Winding road; W1-6 One-direction large arrow; W1-7 Two-direction large arrow; W1-8 Chevron; W1-11 Hairpin curve; W1-13 Truck rollover warning; W1-15 270° loop; W2-1 Cross road; W2-2 Side ...

2021年10月24日 · The Winding Road Next (__) Miles Sign (W1-5-1) may be used on non-numbered traffic routes to warn drivers of the general alignment or nature of low volume roadways instead of identifying each turn or curve.

Warning signs specified herein cover most of the conditions that are likely to be encountered. Special warning signs for low-volume roads (as defined in Section 5A.01), temporary traffic control zones, school areas, highway-rail grade crossings, bicycle facilities, and highway-light

Title: W1-1L, W1-1R Author: Richard C. Moeur, Manual of Traffic Signs Created Date: 10/4/2018 3:51:20 PM