RRA
Data Products Distress & Urban Decay Blight Expansion Vector Analysis

Distress & Urban Decay

Blight Expansion Vector Analysis

Directional field mapping from the Low-Low assessor value cluster mass toward each pre-adjudication parcel — identifying active expansion corridors with bearing, distance, urgency score, and observed escalation velocity.

1,741
Pre-Adj Parcels
85%
S/SSE/SE Bearing
0–100
Urgency Score
Caddo
Coverage

About this product

Urban decay does not spread uniformly. This dataset maps the directional relationship between Shreveport's established Low-Low assessor value cluster mass — the geographic core of concentrated low-value, low-investment properties — and each of the 1,741 parcels currently carrying an active legal notice but not yet formally adjudicated.

For each pre-adjudication parcel, the dataset records its bearing and distance from the LL cluster centroid, an urgency score combining elapsed legal notice time, LISA spatial quadrant, and cumulative violation count, and an escalation velocity derived from the observed rate of inspection stage progression. Parcels burning through escalation stages quickly at close range to the LL core represent the highest near-term acquisition and intervention risk.

The bearing distribution is not uniform: 85% of pre-adjudication parcels lie to the south-southeast of the LL cluster centroid, tracing an active expansion corridor that aligns with the city's documented pattern of southward decay diffusion. This directional signal is not available from individual parcel records — it emerges only from the spatial relationship between the cluster mass and the pipeline.

Buyers

  • CDFIs and community lenders mapping acquisition targets ahead of adjudication
  • Municipal agencies and housing authorities prioritizing proactive code enforcement and demolition budgets
  • Nonprofit developers identifying corridor-level reinvestment opportunities before properties reach auction
  • Researchers and policy analysts studying spatial patterns of urban decay propagation

Delivery

  • ·CSV — one row per pre-adjudication parcel with all vector and velocity fields
  • ·GeoJSON — centroid-point file with bearing and urgency as properties
  • ·Refreshed quarterly or following each new code violations PRR
  • ·Caddo Parish coverage; Bossier and DeSoto pending permit and violation data acquisition

Dataset Fields

geogno / address
Parcel identifier and street address
bearing_deg / bearing_label
Direction from the LL cluster centroid to this parcel — degrees (0–360) and compass label (N, SSE, etc.)
distance_km
Great-circle distance from the LL cluster centroid to the parcel centroid (km)
urgency_score
Composite 0–100 score: 60% elapsed legal notice time (vs. 371-day median to adjudication), up to 25% LISA quadrant bonus (LL=25, LH=10), up to 15% cumulative violation multiplier
days_open
Days since the legal notice was filed on this parcel
days_to_adj_est
Estimated days remaining until adjudication using the 371-day median trajectory from legal notice onset
escalation_velocity_days_per_stage
Observed avg days per escalation stage transition: days_open ÷ inspection_count. Lower = faster-moving case.
est_days_to_adj_velocity
Velocity-based adjudication estimate: escalation_velocity × stages_remaining_to_legal_notice. Independent of the median-trajectory estimate.
violation_count
Total cumulative violations on record for this parcel
escalation_stage
Current code enforcement escalation stage
land_fmv / improved_fmv
Assessor fair market value — land and improvements
land_lisa
LISA spatial cluster quadrant at the parcel location (HH / HL / LH / LL / NS)
lat / lon
Parcel centroid coordinates (WGS84)
Request Sample →