design_min_radius — DRIVE `lateral` op

• Data kinds: any → any

• Call: import fullseye as fs; fs.ledger.design_min_radius(design_speed_kmh, *, side_friction: 'float', superelevation: 'float') -> 'np.ndarray' (to call the implementation directly, import drivelateral; drivelateral.design_min_radius(design_speed_kmh, *, side_friction: 'float', superelevation: 'float') -> 'np.ndarray'; from the registry, opsdrive.get("design_min_radius"))

Usage

Minimum curve radius from Eq. (3) of the commentary on the Road Structure Ordinance: R = V² / (127 (i + f)) [m] (V in km/h).

> The detailed description below is the original text — the summary and the headings are translated.

(2) 式から分母の i f を落とし(i f ≪ 1)、3.6² g ≈ 127 とした設計の式。厳密な上限速度は curve_speed_limit。

Raises ValueError: V ≤ 0、f < 0、i + f ≤ 0。

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• (none yet)

Ops the type connects to (they accept `any` as input)

course_crank · course_s_curve · course_turnaround · course_slope · course_intersection · course_parallel_parking · course_crossing · course_road

Same category (`lateral`)

friction_circle_usage · curve_speed_limit · understeer_gradient · steady_cornering · bicycle_model_step · ackermann_steer_angles · offtracking_circle · rear_axle_path

*Provenance: drivelateral.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

design_min_radius — DRIVE lateral op