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Traffic Study Cost Calculator

Traffic studies determine required roadway improvements for new development.

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Total traffic cost

$500,000

Study cost

$50,000

Improvement cost

$450,000

How the math works

Study cost = base + intersections × rate. Total = study + improvements.

$30k + 4 × $5k = $50k study + $450k improvements = $500k total traffic cost.

How to Use

  1. Enter study base cost.
  2. Enter intersections to analyze.
  3. Enter trip generation adjustments.
  4. Enter roadway improvement cost.
  5. Read total traffic cost.

Frequently Asked Questions

Study scope?

ITE trip generation analysis. Existing traffic counts. Future growth projections. Level of Service (LOS) analysis at impacted intersections. Recommended improvements (signals, turn lanes, capacity). 4-8 month study, $15k-75k typical.

Typical improvements?

Traffic signal installation: $150k-350k. Turn lane: $50k-200k per. Intersection reconfiguration: $200k-1M. Dedicated acceleration/deceleration lanes: $100k-400k. Each assumes developer-funded improvement.

Negotiation leverage?

Pro rata share allocation (developer pays for their impact, not entire improvement). Fair share contribution. Off-site vs on-site improvements. City matching funds. Credit for existing trip generation (redevelopment sites).

How often should I rerun this?

Rerun this calculator whenever inputs change materially — new rent roll data, rate moves, loan balance updates, or quarterly operating data. For active deals, monthly refresh is typical. For stabilized assets under monitoring, quarterly is fine. Treat the output as a decision tool, not a one-time answer — market conditions evolve and so should your analysis.

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