Trip Planning for CDL Drivers: Routes, Fuel, and Time Management

Poor trip planning is the difference between a profitable, stress-free run and a nightmare of missed deliveries, HOS violations, and empty fuel tanks. Professional drivers know that the drive starts before you turn the key — it starts at the planning stage. This guide covers everything you need to plan a commercial trip efficiently. Study the underlying rules with our free CDL practice tests.

Step 1: Route Selection

The first step in trip planning is selecting your route. This is not as simple as opening Google Maps — commercial trucks have restrictions that passenger cars don't:

• Bridge height limits: A standard tractor-trailer is 13'6" tall. Many bridges are lower. Never trust a car GPS to account for this.
• Weight limits: Some bridges and roads have weight restrictions. Your route must accommodate your gross vehicle weight.
• Hazmat restrictions: Tunnels, certain bridges, and some city routes prohibit Hazmat loads. Check the FMCSA's route restrictions for your specific Hazmat class.
• Truck-restricted roads: Many parkways and some highways prohibit commercial vehicles entirely.
• STAA routes: The Surface Transportation Assistance Act designates certain National Network routes that must accommodate trucks. State and local routes may have additional restrictions.

Tools for route planning:

• Truck-specific GPS: Rand McNally TND, Garmin Dezl, or Copilot Truck
• Trucker Path app: Shows truck stops, parking, fuel prices, weigh stations, and clearance information
• Google Maps (with satellite view): Useful for checking delivery locations and turn-around space
• Truck atlas: A paper atlas as backup — electronics fail, and you need to be able to find your way without GPS

Step 2: Fuel Planning

Fuel is the single largest variable expense in trucking. A well-planned fuel strategy can save hundreds of dollars per trip. Here's how:

1. Check fuel prices along your route. Use the Trucker Path app, GasBuddy, or your carrier's fuel network. Prices can vary by $0.50+ per gallon between states.
2. Plan fuel stops at the cheapest locations. Fuel in low-tax states (e.g., Missouri, Oklahoma, South Carolina) when possible. Avoid fueling in high-tax states (California, New York) unless you have no choice.
3. Fill up at truck stops with negotiated discounts. Major carriers have fuel networks (Comdata, EFS, TCH) that offer discounts at participating truck stops.
4. Never let your tank drop below 1/4. Running out of fuel in a commercial truck is dangerous, expensive, and can damage the fuel system.
5. Plan for IFTA. If you fuel in a state with cheap diesel but drive through expensive states, you may owe additional IFTA taxes. Balance fuel price with IFTA considerations.
6. Plan fuel stops at locations with parking. If you're approaching your driving limit, fuel and park at the same location.

Step 3: Hours of Service Planning

Your trip plan must account for your HOS limits. Here's how to calculate your driving budget:

1. Check your available hours: Review your ELD to see how many hours you have available on your 70-hour (or 60-hour) clock and your 11-hour driving limit.
2. Calculate driving time: Divide your total miles by your average speed. For planning purposes, use 50 mph average (accounts for stops, traffic, terrain). A 600-mile trip = ~12 hours of driving.
3. Factor in the 30-minute break: If you'll drive more than 8 hours, plan a 30-minute break.
4. Plan overnight stops: If the trip exceeds one day, plan where you'll park for your 10-hour break. Truck stop parking fills up by 6–7 PM — plan to arrive early.
5. Add buffer time: Add 1–2 hours of buffer for traffic, weather, weigh stations, and unexpected delays. Never plan to use every available minute.
6. Verify against pickup and delivery appointments: Ensure your plan gets you to the pickup on time and the delivery within the appointment window. If not, communicate with your dispatcher immediately.

For a deeper dive on the rules, read our guide to CDL Hours of Service.

Step 4: Weather and Traffic Assessment

Check conditions for your entire route, not just your starting point:

• Weather apps: Use the National Weather Service, NOAA, or trucking-specific weather services. Look for winter storm warnings, high wind advisories, and severe thunderstorm watches along your route.
• Road conditions: Check state DOT websites for road closures, construction zones, and chain requirements. The FMCSA's 511 system provides real-time road information.
• Traffic: Google Maps or Waze can show congestion. Plan to avoid major cities during rush hours (7–9 AM, 4–7 PM).
• Mountain passes: Check pass conditions and chain laws in winter. Some passes close entirely during storms. Know your alternate routes.
• Wind warnings: High-profile vehicle advisories are posted on open highways and bridges. If winds exceed 40 mph, plan to delay or reroute.

Common Trip Planning Mistakes

The Pre-Trip Planning Checklist

Before every trip, run through this checklist:

1. Confirm pickup and delivery addresses, appointments, and load details
2. Input route into truck GPS and verify with satellite imagery
3. Check fuel prices and plan fuel stops
4. Review available HOS hours on your ELD
5. Plan overnight parking locations and reserve if possible
6. Check weather and road conditions for the entire route
7. Identify weigh stations and plan for open ones
8. Calculate toll costs and ensure you have a transponder or cash
9. Identify backup routes in case of closures
10. Verify Hazmat route restrictions if applicable
11. Complete your pre-trip inspection before departure

Frequently Asked Questions