Traffic Engineering & Compliance Tools

Interactive, field-ready computational utilities developed for civil engineers, municipal public works staff, traffic safety contractors, and roadway inspectors conforming to the FHWA Manual on Uniform Traffic Control Devices (MUTCD 11th Edition).

Part 2 Standards

Sign Sizing & Placement Calculator

Determine required sign blank dimensions, vertical mounting elevations, roadside lateral clearances, and advance placement distances based on roadway classification and travel speed.

Calculates standard dimensions for single-lane, multi-lane, and expressways.
Specifies mandatory urban (7 ft) vs. rural (5 ft) vertical mounting heights.
Computes MUTCD Table 2C-4 advance warning distances (15 to 75 mph).
Identifies required ASTM D4956 retroreflective sheeting grades.

Launch Sizing Tool →

Part 6 Temporary Traffic Control

Work Zone Setup & Taper Calculator

Compute merging, shifting, shoulder, and one-lane two-way taper lengths, buffer spaces, warning sign advance spacing, and channelizing device intervals under FHWA Part 6.

Formulates merging taper lengths (L = WS or L = WS²/60).
Calculates advance warning sign intervals for urban and rural highways.
Computes longitudinal buffer space based on stopping sight distance.
Generates printable field setup specification sheets.

Launch Work Zone Tool →