Traffic Scenario Fuel Calculator
Traffic Scenario Fuel Calculator. Compare entered congestion consumption assumptions.
Traffic Scenario Fuel Calculator
Compare entered congestion consumption assumptions.
Use the calculation engine below to model your exact costs with custom fuel prices, distances, and vehicle efficiencies:
Traffic Scenario Fuel Calculator: inputs
Adjust sliders or enter exact figures
Monthly Fuel Budget
Real-Time Visual Breakdown
Comparing your expense against alternative vehicle classes
Price Fluctuation Stress Test
See how unexpected gas price surges would impact your monthly budget
How Traffic Scenario Fuel Calculator Works
This tool works by applying different fuel economy assumptions for free-flowing, moderate, and heavy traffic to the same route, then comparing the costs.
- Step 1
Enter route distance
Type the round-trip commute or route distance and trips per year.
- Step 2
Enter free-flow MPG
Use the MPG the car returns with no congestion.
- Step 3
Set congestion assumptions
Enter MPG drops for each traffic level, such as 15% for moderate and 30% for heavy congestion.
- Step 4
Compare scenarios
The calculator shows the cost under each traffic level and the extra cost of congestion.
Traffic Scenario Fuel Calculator Formula
The formula lowers MPG by the congestion assumption and prices the same distance for each scenario.
Scenario MPG = Free-Flow MPG × (1 − Congestion Drop %)
Scenario Cost = (Distance ÷ Scenario MPG) × Price
Congestion Cost = Scenario Cost − Free-Flow Cost
- Congestion Drop %
- = assumed fuel economy loss in that traffic level
- Free-Flow MPG
- = fuel economy in open traffic
Worked Example
- A commuter drives 40 miles (64 km) round trip, 250 days a year = 10,000 miles per year, at 30 MPG free-flow.
- Free-flow: 333.3 gal × $3.50 = $1,166.67.
- Heavy traffic (−40%, 18 MPG): 555.6 gal × $3.50 = $1,944.44.
- Congestion cost = $777.78 per year and 222 extra gallons (841 liters).
Traffic Scenario Fuel Calculator Conversion Table
The table converts congestion assumptions into fuel economy and annual cost for 10,000 miles (16,093 km), 30 MPG free-flow, and $3.50 per gallon.
| Traffic Level | MPG Drop | Scenario MPG | L/100 km | Annual Cost | Congestion Cost |
|---|---|---|---|---|---|
| Free-flow | 0% | 30.0 | 7.8 | $1,166.67 | +$0.00 |
| Light | 8% | 27.6 | 8.5 | $1,268.12 | +$101.45 |
| Moderate | 17% | 24.9 | 9.4 | $1,405.62 | +$238.96 |
| Heavy | 30% | 21.0 | 11.2 | $1,666.67 | +$500.00 |
| Gridlock | 40% | 18.0 | 13.1 | $1,944.44 | +$777.78 |
MPG drops are planning assumptions. Track your own fuel use in heavy traffic for exact figures.
What is a Traffic Scenario Fuel Calculator?
A Traffic Scenario Fuel Calculator is a planning tool that compares fuel costs under different congestion assumptions for the same route.
Traffic congestion raises fuel use through idling, repeated acceleration, and low average speeds. A commute that costs $4.67 per day in open traffic costs $7.78 per day at a 40% MPG drop. The Traffic Scenario Fuel Calculator puts a yearly price on congestion.
Commuters use the result to compare leaving earlier, changing routes, or switching to transit on the worst traffic days.
What are the uses of a Traffic Scenario Fuel Calculator?
There are 4 main uses of the Traffic Scenario Fuel Calculator, including commute timing, route choice, and flexible-hours requests.
Time the commute
Compare the cost of rush-hour driving with an early start.
Choose a route
Weigh a congested short route against a clear longer one.
Request flexible hours
Show the yearly fuel saving of avoiding peak traffic.
Plan city deliveries
Budget delivery fuel for peak and off-peak windows.