Use this engineering calculation for a transparent preliminary estimate or independent arithmetic check when geometry, materials, loads, operating conditions, and units are defined consistently.

Vehicles Per Hour Per Lane (veh/h/lane)

Required number input.

Lane Count

Required integer input.

Nominal link capacity from specified per-lane saturation flow times active lane count; excludes signals, merges and adjustments. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Capacity Vehicles Per Hour (veh/h)

The resulting capacity vehicles per hour returned as a number.

• Road geometry, pavement loading, sight distance, superelevation, and traffic estimates depend on jurisdictional criteria, design speed, vehicles, grade, friction, climate, drainage, growth, human factors, and survey data. Apply the current road authority standard.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check assumptions against drawings, measurements, current material data, and the applicable design code. Apply required load combinations and safety factors, then obtain qualified review and testing for consequential designs.

• Bolt Tensile Capacity

  Nominal axial force from bolt tensile stress area times a user-supplied allowable tensile stress; excludes prying and interaction.

• Battery Parallel Capacity

  Nominal parallel pack amp-hour capacity from identical branch capacity and integer branch count.

• Bolt Shear Capacity

  Nominal single-shear force from bolt shear area times a user-supplied allowable shear stress; not a code-rated connection capacity.