The Disappearing Front Range: Build the Metropolitan Fringe

Human geography in action - rebuilt

The Disappearing Front Range

Transportation makes land accessible. Growth makes choices irreversible. Can Colorado Springs add homes without paving over the geography that made people want to live there?

Your task: build a metropolitan future, then negotiate with people who value a different one.

1

Watch a city become a corridor

Colorado Springs did not expand across an empty, featureless sheet. Roads, mountains, military land, and developable prairie gave growth a direction.

City population45,472

Dominant accessDowntown roads

Growth directionCompact core

The urban shapes are teaching reconstructions, not parcel-accurate historical boundaries. The geographic constraints and transportation corridors are real.

Predict before you animate

Which force best explains why later growth moved north and especially east?

Make a prediction, then move through the years.

The pattern is not merely natural. A road does not force a subdivision to appear, but it changes which land becomes profitable to develop. Transportation and land markets form a feedback loop.

2

Hold growth constant. Change its geography.

The original planners compared five ways to add the same 72,000 homes. That control matters: it prevents "build nothing" from quietly winning every environmental category.

Urban Villages

Cluster homes, shops, and employment in several walkable centers outside downtown.

Density8.4/ac

Land converted10,743

Water/sewer$257m

Density, land conversion, and water/sewer estimates reproduce the original controlled scenario comparison in approximate year-2000 dollars. They are historical teaching estimates, not bids for present projects.

Define what "best" means

Preserve land7

Limit public cost6

Reduce car need6

Housing access7

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Water stress: penalize land-hungry, low-density growth. Passenger rail: reward growth that can cluster near a corridor or center. Affordability rule: reserve homes near services and reduce displacement risk.

Your ranking

No scenario wins every category. Changing a value changes the winner because planning is a choice among tradeoffs, not a hunt for a hidden correct answer.

72,000 homes in every scenarioFive real planning alternativesModel values are simplifiedNew policies are teaching experiments

3

Does the model travel?

A useful model should survive a change of place, but it should not survive unchanged. Transfer your preferred scenario from a linear mountain-front city to the ring-and-radial Twin Cities.

Colorado Front Range

Dominant geometry: a north-south urban corridor pressed against the Rockies.

Special constraints: scarce water, foothill habitat, wildfire exposure, federal and military land.

Twin Cities region

Dominant geometry: two cores, radial highways, and a circumferential freeway ring.

Special constraints: wetlands, lakes, high-quality farmland, fragmented municipalities, and sewer-service boundaries.

Transfer one strategy

The seven-county Twin Cities region is forecast to gain about 657,000 residents from 2020 to 2050. Apply one Colorado Springs strategy and predict what changes.

Question	Colorado Springs	Twin Cities
What directs growth?	Mountain barrier plus I-25 and eastern roads	Two downtowns, ring roads, radials, and sewer service
What land is at risk?	Prairie, foothills, riparian habitat	Wetlands, lakesheds, forests, and farmland
Who coordinates?	Many local governments plus state transportation and water institutions	Local governments plus a seven-county regional council for land use, transit, sewers, and parks
What can the model hide?	Water rights, wildfire, military land, and unequal exposure	Municipal tax competition, racial inequality, displacement, and uneven transit access

4

There is no city without stakeholders

Select three people for a citizens committee. The best technical score may not be the proposal a real coalition can accept.

Build a three-person committee

Select a role.
Its priorities and fears will appear here. Select up to three roles for the committee.

Committee table

Selected members

No members yet

Consensus is not unanimity. It is a choice everyone can live with after safeguards are added.

Draft the recommendation

Our committee has not yet selected three members.

5

Explain the geography, not just the winner

A sophisticated answer names the preferred pattern, the tradeoff it accepts, and the forces the model failed to include.

Your final explanation

1. Why did Colorado Springs grow mostly north and east? 2. Which scenario do you recommend, and what cost does it impose? 3. Why does that strategy work differently in the Twin Cities?

Model audit

Check at least four forces that could overturn a neat scenario ranking.

Water rights and drought Wildfire and smoke Induced driving Housing displacement Municipal tax competition Remote and hybrid work Construction emissions Tribal land and sovereignty

The deepest lesson: sprawl is not simply a city growing badly. It is a landscape produced by thousands of linked decisions about roads, mortgages, zoning, utilities, land prices, and who gets heard. Once concrete hardens, yesterday's choice becomes today's geography.

Evidence and limits. The five-scenario structure and historical estimates are adapted for teaching from Kuby, Harner, and Gober's Colorado Springs activity. Current framing draws on the Colorado State Demography Office, DRCOG Metro Vision 2050, CDOT Front Range Passenger Rail planning, the U.S. Census Bureau, and the Metropolitan Council's Imagine 2050 forecasts. Scenario scores are transparent teaching estimates, not official forecasts.

Colorado State Demography Office | Metro Vision 2050 | CDOT Front Range rail | Imagine 2050