FA-68528 / Toll and parking fee computation / Member archive

Axle and height vehicle classification: the oversize surcharge ignores trailer axles · case 03

Axle and height vehicle classification returns a wrong result when the oversize surcharge ignores trailer axles.

Member previewVariant 3 · 3 implementations · 8 checks per implementation

Case contract

Input {axles, trailer_axles, height_cm, dual_tires, motorcycle, tolls: [[class, cents]], oversize_fee}. A two-axle motorcycle without trailer is class M. Otherwise total axles = vehicle + trailer: up to two axles is class 1 when under 200 cm and without dual tires, else class 2; three or more is the axle count, capped at 5. Vehicles 410 cm or taller pay oversize_fee per total axle. Return [class, cents].

Why this case matters

Fee engines bill customers in integer cents; a wrong boundary, rounding stage or cap scope silently over- or under-charges.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
fee oracle 4	`["2", 600]`	`["2", 750]`	Failed

MEMBER ARCHIVE

The complete case is available to members.

This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

Member access is invitation-based. Sign in with your invited account to inspect the sources.