bridge formula造句

• The Federal-Aid Highway Act Amendments of 1974 established the bridge formula as law, along with the gross weight limit of.
• In 1964, the AASHTO recommended to Congress that a bridge formula table be used instead of a single gross weight limit for trucks.
• One of the alternative formulas ( later known as the TTI HS-20 Bridge Formula ) was developed in conjunction with the Texas Transportation Institute.
• This exception was specifically requested by the American Trucking Associations to allow tank trucks to reach the maximum legal gross weight without violating the bridge formula law.
• FHWA regulation ?58.17 states : " The maximum gross vehicle weight shall be except where lower gross vehicle weight is dictated by the bridge formula ."
• The federal weight limits for CMVs are for gross weight ( unless the bridge formula dictates a lower limit ), for a tandem axle, and for a single axle.
• Penalties for violating weight limits vary between states ( bridge formula weight violations are treated as gross weight violations ), as the states are responsible for enforcement and collection of fines.
• Two or more consecutive axles may not exceed the weight computed by the bridge formula, even if the gross weight of the truck ( or the weight on one axle ) is below otherwise legal limits.
• A CMV may exceed the bridge formula limits ( or gross weight and its axle weight limits ) by up to if the vehicle is equipped with an auxiliary power unit ( APU ) or idle reduction technology.
• These tests led to a 1964 recommendation by the AASHTO ( to Congress ) that the gross weight limit for trucks should be determined by a bridge formula table based on axle lengths, instead of a static upper limit.
• ;Lift axle : An air-powered axle that may be raised or lowered to the ground to provide greater load-carrying capacity, or to comply with axle weight requirements ( see also Federal Gross Weight Bridge Formula ).
• The bridge formula law was enacted by the U . S . Congress to limit the weight-to-length ratio of heavy trucks, and to protect roads and bridges from the damage caused by the concentrated weight of shorter trucks.
• This means that the axle group which comprises the entire truck ( known as the " outer group " ) and the interior axle groups ( known as the " tractor group " and " trailer group " ) must also comply with the bridge formula.
• Prohibits application of federal weight limitations to a longer combination vehicle operating on a segment of the Interstate System in Idaho if it : ( 1 ) has a gross vehicle weight of 129, 000 pounds or less; ( 2 ) complies with certain single axle, tandem axle, and bridge formula weight limits; and ( 3 ) is authorized to operate on that segment under Idaho law.
• The "'Federal Bridge Gross Weight Formula "'( also known as "'Bridge Formula B "'and the "'Federal Bridge Formula "') is a mathematical formula in use in the United States by truck drivers and Department of Transportation ( DOT ) officials to determine the appropriate maximum gross weight for a commercial motor vehicle ( CMV ) based on axle number and spacing.
• The "'Federal Bridge Gross Weight Formula "'( also known as "'Bridge Formula B "'and the "'Federal Bridge Formula "') is a mathematical formula in use in the United States by truck drivers and Department of Transportation ( DOT ) officials to determine the appropriate maximum gross weight for a commercial motor vehicle ( CMV ) based on axle number and spacing.
• The reason is already mentioned . " The bridge formula law was enacted to limit the weight-to-length ratio of heavy trucks, and to protect roads and bridges from the damage caused by them . " There were no catastrophic bridge col lapses that prompted them to invent a formula to protect bridges, it was a preventative measure taken due to the simple fact that trucks were getting heavier ( due to increasing weight limits ) and more numerous every year.