Transportation Learning HubFree Transportation PE Calculators
Browser-based calculators for FE Civil and PE Civil Transportation study — no account, no download.
Check your hand calculations against these browser-based tools — no account, no download. Each one shows the governing equation so you can see exactly what it is doing. Four tools serve the geometric-design, traffic and traffic-control areas directly; two drainage tools serve PE Area 10 (Drainage), where the exam reaches for runoff and open-channel flow.
⚡ Studying for the PE Transportation exam?
Pair each calculator with its knowledge-area page: the theory, the worked example and the traps sit alongside the tool, and the study plan puts the ten areas in order.
All calculators
Stopping Sight Distance
Perception–reaction distance plus braking distance, with grade, from design speed, reaction time and friction.
CalculatorSuperelevation
Required rate of superelevation e from design speed, curve radius and side friction factor.
CalculatorTaper Length
Merging taper length for temporary traffic control, with the channelizing-device count on the taper.
CalculatorPeak Hour Factor
PHF and the peak flow rate from the hourly volume and the peak 15-minute count.
Calculator · DrainageManning's Equation
Open-channel discharge for rectangular, trapezoidal, and full circular sections — SI and US units. Serves PE Area 10 (Drainage).
Calculator · DrainageRational Method Runoff
Peak runoff rate from runoff coefficient, rainfall intensity, and drainage area. Serves PE Area 10 (Drainage).
Learn the methods behind each tool on the hub topic maps — every knowledge-area page carries the theory, a worked example and the common traps for its calculations.