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Parking Count + Ratio

Counts standard / ADA / van stalls from block references and closed polylines on the parking layers, computes the required supply from a zoning ratio (or a manual override), and audits the accessible & van counts against the 2010 ADA Standards §208.2 federal table.

Command VDCPARKING · VDC QC tab › Site QC panel
Counts standard / ADA / van stalls from block references and closed polylines on the parking layers, computes the required supply from a zoning ratio (or a manual override), and audits the accessible & van counts against the 2010 ADA Standards §208.2 federal table.
Counts stalls by type × audits provided vs. zoning demand and ADA §208.2 minimums. Standard stalls (blocks / closed PLINEs) A ADA V Van + aisle Counted: Std 82 | ADA 3 | Van 1 Provided total = 86 (example) Demand = ratio × 20.0k sf ÷ 1,000 = 80 ≤ 86 PASS Accessible §208.2: need 4 (86 stalls), have 4 PASS Van: need ceil(4 ÷ 6) = 1, have 1 PASS van / ADA tested before standard → no double-count Findings: total below demand · accessible below §208.2 · van below 1-per-6 rule (site-wide tally, no zoom point). Output: <drawing> - Parking.csv (counts + requirements + findings) plus the findings palette.
Standard stalls   ADA accessible   Van + access aisle   Pass   Flag / rule

What it does, per run

  • Counts by type: stalls read from block references (by name) and closed polylines (by layer) on the parking layers.
  • No double-count: van and ADA are tested before standard, so a van stall isn't also tallied as standard.
  • Demand: required = zoning ratio (spaces / 1,000 sf) × building area, or a manual override.
  • ADA audit: provided accessible + van compared to the 2010 ADA §208.2 table (1 per 25 up to 100, then a sliding scale).
  • Van rule: ≥ 1 van per 6 accessible → van = ceil(accessible ÷ 6).
  • Findings: total below demand, accessible below §208.2, or van below the 1-per-6 rule (no zoom point, site-wide tally).

Settings & options

  • Ratio × area: demand computed from the configured ratio (spaces per 1,000 sf) × building area (sf), both held in settings.
  • Manual total: any value over 0 overrides the ratio formula.
  • ADA minimums: always from the hardcoded federal §208.2 table, regardless of the zoning ratio.
  • Names: layer / block name lists for standard / ADA / van live in settings.json.
  • Env var VDC_PARKING_SETTINGS, default %APPDATA%\VDC\Parking\settings.json; schema-tolerant load.
  • Output: <drawing> - Parking.csv (counts, requirements, findings) plus the findings palette.

Dialog

Parking Count + Ratio dialog
Parking Count + Ratio, VDCPARKING

When to use it

  • Checking a site's parking count and accessible-stall compliance against zoning and the federal ADA table.

How to run it

  1. Run VDCPARKING; set the ratio (spaces / 1,000 sf) and building area, or a manual required total.
  2. Click OK; the tool scans the drawing for stall blocks / polylines on the parking layers.
  3. Review the standard / ADA / van counts, the zoning demand, and the ADA Section 208.2 findings in the palette.

Options

  • Ratio x building area: demand = ratio (default 4.0 / 1,000 sf) times building area (sf).
  • Manual required total: any value over 0 overrides the ratio formula.
  • ADA Section 208.2: accessible / van minimums come from the hardcoded federal table (van = ceil(accessible / 6)).

Watch out for

  • The accessible / van minimums always come from the ADA 208.2 table regardless of the zoning ratio.
  • Stall layer / block name lists live in settings.json (read-only hints in the dialog) - match them to your naming.
  • The CSV is only written when the drawing is saved to a real path.

Related: ADA Slope · Lot QC · QC Status