# T013 — Conway P1948 Permit Summary vs Engineering and GIS Points The P1948 permit description, the final case-941655 engineering sheets, and ARDOT's later statewide GIS export all identify the same fourteen-device Conway permit set, but several route-section-log-mile values and every GIS-versus-plan coordinate differ at some precision. The record does not identify which layer is the final as-built survey, so the wiki retains all three rather than selecting or averaging them. ## Statement A P1948's summary authorizes *"Installation of 14 ALPRs in Conway, Arkansas"* and lists Hwy 60 LM 1.560, 1.580, 3.303, 3.464, 5.148, and 5.167; Hwy 64 LM 0.057 EB/WB, 2.333, and 2.336; Hwy 65 LM 0.214 EB/WB; and Hwy 365 LM 0.829 and 0.980 ([[ARDOT Right-of-Way Permitting — Case 941655 and Permit SP-08-2025-0036]], `P1948 ALPR (14 ALPRs) D8 Faulkner Co Conway - Signed by Division Head.pdf`, permit description). ## Statement B The final plan sheets record, among other differences, Hwy 60 LM 1.590, 3.259, 5.153, and 5.174; Hwy 64 LM 2.327 for both directions; and Hwy 365 LM 0.984. The same sheets give exact device-specific coordinates on pages 22-35. ARDOT's GIS export records fourteen P1948 point rows at `TrafficControlDevices.csv` lines 378-391 with slightly different coordinates and some section/log-mile values ([[ARDOT Right-of-Way Permitting — Case 941655 and Permit SP-08-2025-0036]]; [[Statewide Traffic Control Devices Export]]). ## Why it matters These values determine which roadside point, carriageway, permit condition, inspection record, and as-built device correspond to each Flock ID. Treating the permit abstract as the engineering drawing—or the GIS point as the installed camera—would erase evidence of revision and could mislocate a device. ## Resolution status Open. Resolution requires ARDOT's final approved/as-built plan set, inspection/acceptance records, and any GIS edit history or coordinate-system notes tying each P1948 row to a specific device ID. ## Discovery The 2026-07-20 full coordinate/corridor reconciliation exposed the differences when the permit abstract, final plan sheets, and statewide CSV were compared field by field. ## Notes - Decimal precision is preserved exactly as recorded; it is not treated as a measure of survey accuracy. - The discrepancy does not negate permit issuance. It limits point-level final/as-built claims.