What route efficiency measures
Route efficiency compares an actual or planned cable path with a reference path. The reference may come from a conceptual shortest route, an approved baseline, or another planning option. The purpose is to quantify how much extra distance the chosen route introduces.
Core calculations
Excess length = planned length − reference length. When the planned route is longer, the excess is positive. Route efficiency is calculated as reference length ÷ planned length × 100 when planned length is greater than zero.
The associated avoidable cable cost is excess length multiplied by the user-entered cable cost per length. The calculator keeps that value separate from labor and other project costs.
Worked example
A reference route of 100 units and a planned route of 115 units create 15 units of excess length. At $4 per unit, the modeled extra cable material cost is $60. Route efficiency is 86.96%.
Why reference routes must be realistic
The mathematically shortest path is not always buildable or desirable. A route may need to avoid structures, maintain separation, provide access, accommodate bends or follow an approved corridor. The reference should therefore represent a legitimate comparison baseline, not merely an idealized straight line.
Decision use
Comparing several proposed routes can show where extra cable length is concentrated. A slightly longer route may still be preferable if it materially simplifies installation or coordination. The cost figure provides one decision input rather than an automatic route recommendation.
Limitations and safety
The analyzer does not calculate voltage drop, pulling tension, bend radius, ampacity or compliance. The route lengths are planning inputs.
Frequently asked questions
Can a planned route be shorter than the reference?
Yes. The calculation then reports negative excess length, indicating the planned route is shorter than the entered reference.
Does the cost include labor?
No. It only multiplies excess length by the user-entered cable material cost.
Can multiple routes be compared?
Yes. Each route is evaluated independently in the schedule.