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Existing Conditions Signals Overview

Updated

What Signals are

The Signals section at the top of your brief turns the full report into the few things to know first. It is a ranked list of findings: the tool computes a fixed set of indicators from your brief's data, flags the ones that cross an established planning benchmark, and ranks them so the most pressing appear at the top.

Signals are a starting point for review. They point you to where to look, and the detail behind every one lives in the section it comes from.

How findings are calculated

Each signal is computed for your study area, the target geography your brief is built around, from the same data that fills the rest of the report. A signal appears only when its value crosses a set benchmark. Signals that stay within the normal range are not shown.

Flagged signals are ranked by three things:

  1. Severity: how high the value is relative to its benchmark (critical, high, or moderate).
  2. How far it exceeds your comparison areas: a value well above the average of your comparison geographies (for example the metro area, county, and state) is ranked higher.
  3. Direction over time: where a 10-year trend is available, a worsening trend raises the ranking.

Signals are screening indicators, not determinations. They are meant to prioritize your review, not to settle a question on their own. Margins of error are not shown on the flags; where reliability matters for a small area, review the underlying section data.

The severity levels

Each signal carries a color that shows how far past its benchmark it sits:

  • Critical (red): well above the benchmark; review first.
  • High (orange): above the benchmark.
  • Moderate (amber): at the lower flag level. Amber still marks a finding worth noting, within a normal-to-moderate range. It does not mean "good"; it means the value reached the first threshold but not the higher ones.

The signals we track

The Existing Conditions brief tracks ten signals across four topics. For each one, here is what it measures, what it commonly indicates, who is counted, where the data comes from, and when it is flagged.

Housing

Extreme renter cost burden (50%+ of income)

  • What it is: Share of renter households paying 50% or more of household income on gross rent (rent plus utilities).
  • What it means: HUD classifies households at this level as severely cost-burdened. A higher share is commonly associated with greater risk of housing instability and displacement.
  • Who's counted: All renter-occupied households for which rent as a share of income is calculated.
  • Source: U.S. Census Bureau, American Community Survey (ACS) 5-year estimates.
  • When it's flagged: At 15% (moderate), 20% (high), 25% (critical).

Renter-majority jurisdiction

  • What it is: Share of occupied homes that are renter-occupied rather than owner-occupied.
  • What it means: Above 50% marks a renter-majority jurisdiction, a context where rental-market conditions and tenant protections are often central planning considerations.
  • Who's counted: All occupied housing units.
  • Source: U.S. Census Bureau, ACS 5-year estimates.
  • When it's flagged: At 50% (moderate), 55% (high), 60% (critical).

Pre-1960 housing stock (lead-paint risk)

  • What it is: Share of occupied homes built before 1960.
  • What it means: Older housing is more likely to contain lead-based paint. This is a screening indicator for lead-exposure risk, not a confirmation of it.
  • Who's counted: All occupied housing units, by the year the structure was built.
  • Source: U.S. Census Bureau, ACS 5-year estimates.
  • When it's flagged: At 25% (moderate), 30% (high), 35% (critical).

Low vacancy rate (tight market)

  • What it is: Share of all housing units that are vacant.
  • What it means: A low vacancy rate is commonly read as a tight housing market with limited available supply.
  • Who's counted: All housing units (occupied plus vacant).
  • When it's flagged: When vacancy is below 5%. This signal has a single level.
  • Source: U.S. Census Bureau, ACS 5-year estimates.

Rent growth outpacing income (10-year)

  • What it is: The gap between 10-year growth in median gross rent and 10-year growth in median household income, in percentage points.
  • What it means: A positive gap means rents rose faster than incomes over the period, commonly associated with worsening affordability. Reported in nominal terms.
  • Who's counted: Jurisdiction median gross rent and median household income, compared across two ACS 5-year periods about a decade apart.
  • Source: U.S. Census Bureau, ACS 5-year estimates.
  • When it's flagged: At +3 points (moderate) and +10 points (high). Shown only when positive; always marked as worsening.

Equity

Poverty rate

  • What it is: Share of people whose household income is below the federal poverty level.
  • What it means: A higher poverty rate is commonly associated with greater need across housing, health, and economic-support programs.
  • Who's counted: Population for whom poverty status is determined (excludes most people in institutions and college dormitories).
  • Source: U.S. Census Bureau, ACS 5-year estimates.
  • When it's flagged: At 15% (moderate), 20% (high), 25% (critical).

Economic

Elevated unemployment

  • What it is: Share of the civilian labor force age 16 and older that is unemployed.
  • What it means: An elevated rate is commonly associated with greater economic distress and demand for workforce and support services.
  • Who's counted: Civilian labor force age 16 and older.
  • Source: U.S. Census Bureau, ACS 5-year estimates, cross-checked against the Bureau of Labor Statistics Local Area Unemployment Statistics.
  • When it's flagged: At 5% (moderate), 6% (high), 10% (critical).

Safety

Total Crime Index

  • What it is: A composite index of total reported crime where 100 equals the U.S. median.
  • What it means: A value above 100 indicates total crime higher than the national median (for example, 130 is about 30% above). It is an index, not a count, and is not directly comparable across places of very different sizes.
  • Who's counted: Modeled crime estimates for the area, indexed to the U.S. median (100).
  • Source: Social Explorer Crime Index.
  • When it's flagged: At 125 (moderate), 130 (high), 135 (critical).

Property Crime Index

  • What it is: A composite index of property crime (burglary, theft, vehicle theft) where 100 equals the U.S. median.
  • What it means: A value above 100 indicates property crime higher than the national median.
  • Who's counted: Modeled property-crime estimates for the area, indexed to the U.S. median (100).
  • Source: Social Explorer Crime Index.
  • When it's flagged: At 150 (moderate) and 170 (high).

Violent Crime Index

  • What it is: A composite index of violent crime (for example assault, robbery) where 100 equals the U.S. median.
  • What it means: A value above 100 indicates violent crime higher than the national median.
  • Who's counted: Modeled violent-crime estimates for the area, indexed to the U.S. median (100).
  • Source: Social Explorer Crime Index.
  • When it's flagged: At 150 (high) and 170 (critical).

Data sources and freshness

Signals draw from the U.S. Census Bureau's American Community Survey (5-year estimates), the Social Explorer Crime Index, and, for unemployment, a cross-check against the Bureau of Labor Statistics Local Area Unemployment Statistics. Your brief shows the exact data vintage in use, and the American Community Survey data is refreshed each year as a new 5-year release is published.

Common questions

Why is a moderate finding amber?

Amber marks a finding at the lowest flag level, still worth noting but within a normal-to-moderate range. It is a severity color, not a judgment that the value is good.

Why don't you show a margin of error?

Signals are screening flags meant to prioritize review, so they show the value and its severity, not statistical margins. When reliability matters for a small area, review the underlying section data.

Can I change the thresholds?

Not yet. Adjustable thresholds, letting you tune the high flag level for certain signals to match local context, are something we are actively working on and plan to add in a future update.

What if no signals appear?

That is a valid result. It means no indicator crossed its threshold for your area. Review the section data for detail.

Why these comparison areas?

Comparisons use the geographies that enclose your target area (for example its metro area, county, and state). Your brief names the specific comparison areas used.