Use this sheet to define required breaks for specific vehicles. Each row represents one break requirement for a vehicle. A vehicle may have multiple break entries if needed.

This sheet is used only when Uniform is selected as the Break Method in the Settings sheet.

With the Uniform break method, all breaks share a single list of possible break locations defined in the Uniform Break Locations sheet. If different sets of allowable locations are needed for each break, use the Non-uniform Breaks and Non-uniform Break Locations sheets instead.

Vehicle ID

Specifies the vehicle to which the break applies.

This field must match a Vehicle ID defined in the Vehicles sheet exactly.

A vehicle may appear on multiple rows if it has multiple required breaks.

Break Window Start

Defines the earliest time the break may begin.

This value must be entered as a non-negative number (for example, 0, 8, 480, 12.5). Do not enter clock-formatted times such as 8:00 AM or 14:30. All time values in cuOpt are numeric and represent whatever unit you choose to model (minutes, hours, days, etc.). NVIDIA cuOpt does not interpret calendar time, it only uses numeric values consistently throughout the model.

Break Window End

Defines the latest time by which the break must begin. This value needs to be greater than or equal to the Break Window Start.

This value must be entered as a non-negative number (for example, 0, 8, 480, 12.5). Do not enter clock-formatted times such as 8:00 AM or 14:30. All time values in cuOpt are numeric and represent whatever unit you choose to model (minutes, hours, days, etc.). NVIDIA cuOpt does not interpret calendar time, it only uses numeric values consistently throughout the model.

Break Duration

Defines the length of the break.

This value must be a non-negative number and must use the same time unit as the rest of the model. The solver will schedule a break of this duration within the specified break window.

Rules and Structure

• Vehicle ID must exist in the Vehicles sheet.

• Break Window End must be greater than or equal to Break Window Start.

• All time values must be numeric and use consistent units.

• A vehicle may have multiple breaks.

• Break windows that cannot be feasibly scheduled within the vehicle’s availability window may cause the model to be infeasible.