Standard Vehicular Loadings Used are which of the following?

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Multiple Choice

Standard Vehicular Loadings Used are which of the following?

Explanation:
HL-93 is the standard vehicular live-load used in modern U.S. bridge design and rating. It comes from the AASHTO LRFD specifications and represents a realistic highway truck loading with appropriate impact and distribution factors. Older loading sets like H20-44, HS20-44, and H15-44 were used in earlier codes but have been superseded by HL-93 for current practice. Because the question asks for the standard, HL-93 is the best answer since it is the universally accepted reference used for design and load-rating of highway bridges.

HL-93 is the standard vehicular live-load used in modern U.S. bridge design and rating. It comes from the AASHTO LRFD specifications and represents a realistic highway truck loading with appropriate impact and distribution factors. Older loading sets like H20-44, HS20-44, and H15-44 were used in earlier codes but have been superseded by HL-93 for current practice. Because the question asks for the standard, HL-93 is the best answer since it is the universally accepted reference used for design and load-rating of highway bridges.

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