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Pickett Road Connector Trail

City Project · Pickett Road, Fairfax, VA · topic history · city record ↗

Screening estimates. These figures rank likely magnitudes with stated assumptions and ranges — they are decision-support context, not predictions. Every number traces to a source or a named assumption in the appendices below. Formulas, citations, and limitations: methodology report (PDF).

Where the effects land

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The trail map shows the trail line, its access points, businesses within walking reach of them with estimated trail-user spending, and the dashed band of parcels close enough to plausibly capitalize a property premium.

Summary

The Pickett Road Connector Trail is a proposed 1,260-foot shared-use path along the east side of Pickett Road in Fairfax City, Virginia, connecting to Thaiss Park on land currently owned by Fairfax Water. As a screening-range estimate for an ordinary urban greenway, the trail's user-spending channel suggests between $984,602 and $12,713,014 per year in direct expenditures at nearby businesses, with a central estimate of $3,734,783. The property channel produces an estimated one-time capitalization of between $0 and $19,972,930 in uplift across the 446 parcels within 1,650 feet of the trail, with an associated annual real estate tax increment of between $0 and $214,210 per year if that premium is reflected in assessments. Three assumptions drive most of the range in these figures: the annual trail user-days per catchment resident (centered at 12, ranging from 6 to 20), the direct spending per user-day (centered at $7.50, ranging from $6.00 to $11.00), and the property value premium applied to adjacent parcels (centered at 3%, ranging from 0% to 5%, with a hard zero floor reflecting null findings in comparable studies).

View metric methods and calculations →

Adjust the assumptions

Every estimate above rests on named assumptions with published ranges. If you have better local knowledge, move the sliders — adjusted values use the exact formulas of the pipeline, bounded by each assumption's sensitivity range. Travel and destination-choice parameters are excluded (they require a full model re-run). Nothing is saved or submitted.

Assumptions

Trail user-days per resident per year
12
6published: 1220

annual trail user-days generated per decay-weighted catchment resident

Trail spending per user-day ($)
7.5
6published: 7.511

dollars a trail user-day leaves at nearby businesses (ordinary urban greenway regime)

Trail property premium
0.03
0published: 0.030.05

capitalization premium applied to assessed value in the proximity band; hold to the lower half of the interval for unpaved or low-quality facilities

Requires a full model re-run

These parameters sit inside the travel/destination-choice model, so their effect on the results is not a simple rescaling — they cannot be adjusted live.

Walk-time decay (β)0.1 (0.050.15)
Trail-access decay (β per km)0.333 (0.250.45)

Recomputed estimates

Trail

MetricPublishedAdjustedΔ
Annual trail user-days497,971497,971
Annual trail-user spending at nearby businessesheadline$3.73M$3.73M
Trail property value uplift (capitalization)$11.98M$11.98M
Annual real estate tax increment (trail premium)headline$129k$129k

Adjusted values are exact recomputations of the model's central estimates for the assumptions above — the same arithmetic the pipeline runs, evaluated in your browser. Published ranges, maps, and the narrative report are not recomputed here.

Full analysis

Project description

The project site is an undeveloped, wooded property north of Thaiss Park along Pickett Road, currently owned by Fairfax Water. No existing trail, path, or active pedestrian facility is documented at this location. The proposal calls for a new shared-use path approximately 1,260 feet long — consistent across two source documents, the city project directory and a January 2022 public hearing advertisement, which both state "approximately 1,260'" — to be constructed on the east side of Pickett Road. Planned facilities include a shared-use path surface of asphalt and concrete boardwalk, along with a pedestrian bridge. The southern terminus connects to Thaiss Park; the northern terminus is not specified in the available documents. Project status is listed as unknown in the city's project directory as of the date of this analysis, and design documents available publicly range from schematic design through 60% construction plans.

Trail effects

Trail-user spending channel. The decay-weighted catchment population — meaning residents within practical walking distance of the trail's access points, weighted by how likely they are to use a trail given their distance from it — is estimated at between 27,350 and 57,786 residents, with a central estimate of approximately 41,498. This estimate uses a network-based walk decay anchored to trail-access trip research from Hennepin County, Minnesota (Iacono, Krizek & El-Geneidy, MnDOT 2008). Applying an annual user-days-per-resident rate of 6 to 20 (central: 12), drawn from the NCDOT/ITRE four-trail study of North Carolina shared-use paths, yields an estimated 164,100 to 1,155,729 user-days per year (central: 497,971). At a direct spending rate of $6.00 to $11.00 per user-day (central: $7.50), drawn from the same NCDOT/ITRE survey data excluding the Duck Trail as an outlier destination-tourism regime, the trail is estimated to generate between $984,602 and $12,713,014 per year in direct spending at nearby businesses, with a central estimate of $3,734,783 per year. These are screening-range estimates appropriate for an ordinary urban greenway; destination-trail tourism behavior is deliberately excluded from this analysis. Among individual nearby businesses, the highest estimated annual capture is $9,828–$33,197 for PNC Bank, $9,725–$33,082 for Shell, $9,725–$33,082 for The Hair Expressionist, $9,725–$33,082 for F45 Training Fairfax Circle, and $9,439–$32,754 for Ruby Tuesday.

Property value channel. The 446 parcels within 1,650 feet of the trail line carry a combined assessed value of $399,458,600. Applying a property premium range of 0% to 5% (central: 3%), drawn from Crompton & Nicholls (2019) review of 20 hedonic analyses, yields an estimated one-time capitalization of $0 to $19,972,930 (central: $11,983,758) in aggregate property value uplift. The zero lower bound is not a technical floor but reflects documented null findings — including results from an NCDOT American Tobacco Trail regression and an Indianapolis case — for trails that do not generate strong user demand or that serve lower-quality facilities. The annual real estate tax increment attributable to the premium, if and as assessments come to reflect it, is estimated at $0 to $214,210 per year (central: $128,526). This figure is recurring in character only to the extent that the capitalization premium is sustained in the assessment base; it is not a one-time payment. Readers should apply caution at the high end of the property premium range: the literature guidance for unpaved or low-profile facilities suggests holding to the lower portion of the 0–5% interval.

Both channels exclude destination-trail tourism effects. The ordinary-greenway anchors used here are appropriate for a local connector path of this length and character; if future ridership or usage data suggest the trail draws visitors traveling specifically for the trail experience, these estimates would be conservative.

Not evaluated in this version

Broader economic and fiscal impact modeling, bike-lane corridor analysis, network connectivity analysis, environmental impact assessment, and comparable-places case studies are deferred from this version of the report and will be addressed in subsequent analytical modules as supporting data are assembled.

Method notes & caveats

  • Not computed: no bike facility among the corridor facilities — add e.g. 'protected bike lane' to proposed.corridor.facilities in the spec YAML if the documents support it
  • Trail estimates are screening ranges for an ORDINARY urban greenway: user-day and spending anchors come from the NCDOT/ITRE four-trail study, and destination-trail behavior (overnight tourism) is deliberately out of scope. If this trail plausibly draws overnight visitors, these figures are conservative.
  • The property-premium channel is a capitalization estimate, not cash: it becomes recurring tax revenue only as assessments reflect the premium, and the 3-5% literature range comes from trails people actually value — hold to the low half for unpaved or disconnected facilities.

Data sources

Computed Jul 27, 2026 · narrative by claude-sonnet-4-6 over deterministic model output (v2)