Guide
What is a robotaxi pit stop?
A robotaxi pit stop is the short depot turnaround a driverless car makes between service periods. It is where the car gets enough charge, a clean cabin, clear sensors, and a quick condition check before it goes back out.
Definition
A robotaxi pit stop is not just a parking event. It is a planned service interval. The vehicle leaves passenger service, enters a depot or service lane, completes the jobs needed for the next shift, and returns to the road. A good pit stop is short, repeatable, and easy to inspect.
The word comes from motorsport, but the depot need is practical. A robotaxi earns value while it is available for rides. Every minute in a bay must have a reason. The planning question is simple: how much bay time does each car need each day, and how many bays does the depot need to absorb that work without forming a queue?
The four jobs of a pit stop
Charge
Charging replaces the energy used during service. The charging time depends on miles driven, energy use per mile, charger power, and charging efficiency. Many plans use partial battery windows because charging the middle of a battery is usually easier to schedule than waiting for a full pack.
Cabin reset
The cabin reset is the human-space check. It can include removing trash, checking seats, wiping touch points, checking odor, and making the car acceptable for the next rider. The time depends on the condition of the cabin and the rules the operator chooses.
Sensor cleaning
Driverless vehicles depend on clear sensing. A pit stop should include a basic wipe or inspection of exposed camera, lidar, radar, and glass surfaces where the vehicle design allows it. Weather, dust, insects, and road spray can turn this from a quick task into a recurring bottleneck.
Inspection
The quick inspection catches visible damage, tire issues, loose trim, warning lights, and anything that should keep the car out of service. It is not a full maintenance visit. It is a gate between one service period and the next.
Why bays, not chargers, are often the bottleneck
People often start by asking how many chargers they need. That matters, but it is not the whole depot. A charger only measures electrical work. A bay measures space, access, vehicle movement, and hands-on work. If a car finishes charging but still needs the cabin reset, the charger may be free while the bay is still blocked. If the charger cable, cleaning gear, inspection path, and exit lane all share one physical position, the bay is the scarce asset.
This is why the planner separates charger minutes from bay minutes. Charging can overlap with cabin and sensor work during charge stops. Non-charging resets still need a place to happen. Pull-in and pull-out time also matters because a minute of movement still consumes lane capacity.
How to size a depot
Start with the fleet size and the miles each vehicle needs to drive in a normal day. Convert those miles into daily energy. Divide that energy by charger power and charging efficiency to estimate charging minutes. Then estimate the number of charge stops by comparing daily energy use with the useful energy in a normal charge window.
Next, add the non-charging reset stops. For each stop, add cabin reset time, sensor cleaning and inspection time, and pull-in or pull-out overhead. For charge stops, use the larger of charging time or hands-on reset time, because those jobs can often happen together. Multiply the resulting bay minutes per vehicle by the fleet size. Divide by depot open minutes and target utilisation. Round up. That is the bay count.
The Robot Pit Stop planner does that arithmetic on the home page. It is deliberately plain so you can challenge the assumptions. Change the minutes, the charger power, and the utilisation target until the plan matches how your depot will really operate.
FAQ
Is a pit stop the same as charging?
No. Charging is one job inside a pit stop. A vehicle may also need cleaning, sensor work, inspection, and movement time.
Does every stop need a charger?
No. Some stops are cabin or sensor resets only. Those still use bay time even when they do not use charger time.
Can cleaning happen while charging?
Often, yes. The planner treats charge-stop service work as parallel with charging, then uses whichever takes longer for that stop group.
Does Robot Pit Stop sell cleaning?
No. This site is a planning tool. If you want cleaning booked, use Robotaxi Complete. For a cabin checklist, use Clean Robotaxi.
Is this enough for a final site plan?
No. Use it for early sizing. A final depot plan should account for local code, utility service, fire access, vehicle details, staffing, and actual site geometry.