Traffic impact studies

Traffic Impact and Access Studies

A focused traffic and access study for developments, redevelopments, and occupancy changes that need documented trip, intersection, access, or mitigation analysis.

Commercial Permit, Structural and MEP Engineering - Fast, Coordinated, and Built Around Your Approval Deadline.

Contractor-friendly scopeWritten fee and scheduleOne ordinary AHJ cycle
Commercial engineering project
Redacted permit drawingsRedacted site plan
Scope and availability review

Project availability is determined after reviewing the scope, project location, jurisdictional requirements and required engineering disciplines. Additional insurance or specialty clearance may be required before contract or production.

Customer trigger

Traffic questions that can block entitlement or permit review

New commercial development

Define trip generation, distribution, access, and study intersections from the reviewing-agency scope.

Change of use

Compare existing and proposed traffic demand and identify whether a formal study or memo is required.

Access permit

Evaluate driveway, spacing, sight-distance, and agency-requested access conditions within the accepted scope.

Intersection operations

Analyze accepted peak periods and scenarios using verified counts and agreed methods.

Mitigation request

Document the basis for recommended turn lanes, signal work, access management, or other accepted improvements.

Reviewer comments

Respond to one ordinary agency review cycle when comments stay within the agreed assumptions and development plan.

Starting fees

Premium commercial scope with controlled pricing

Final fee depends on the accepted jurisdiction, existing information, building and equipment complexity, required disciplines, field needs, and deadline.

Traffic impact / access study$10,000-$25,000+

Final fee depends on agency scope, counts, scenarios, and intersections.

Paid scoping / data review$1,500-$2,500

May be credited when stated in the proposal.

Proposal and payment policy

  • No payment is required before scope and availability review and acceptance of a written proposal.
  • Projects at or below $3,000: 100% before production after proposal acceptance.
  • Projects from $3,001-$25,000: 60% deposit; balance before final sealed issuance.
  • Projects above $25,000: 50% deposit, 30% at coordinated draft, 20% before final issuance.
  • Rush service: 40% premium when accepted in writing.
  • Site visits, surveying, geotechnical work, testing, laboratory services, and scope changes are separately priced.

Defined deliverables

What the accepted package may include

  • Agency scope and criteria confirmation
  • Trip-generation and distribution analysis
  • Existing and future operating scenarios
  • Access and intersection analysis within scope
  • Mitigation recommendations tied to the analysis
  • Traffic study or technical memorandum
  • One ordinary AHJ review cycle

Turnaround control

Complete qualified requests received during operating hours target a same-business-day scope response. The written proposal confirms the production start, required intake, responsible-professional availability, review milestones, and final issuance date before payment.

Scope boundary

Traffic counts, surveys, signal design, roadway construction plans, parking studies, crash analysis, simulation, environmental documents, public hearing representation, and agency fees are separate unless included.

Project information

Send address, AHJ, records, and the real deadline

Use the project description to identify the full project address and authority having jurisdiction. Upload the files already available; additional photographs or records may follow during scope review.

Required intake

  • Project address, parcel, and reviewing agency
  • Current concept/site plan
  • Existing and proposed land uses and sizes
  • Development phasing and opening year
  • Agency scoping correspondence
  • Available traffic counts and prior studies
  • Known access restrictions
  • Entitlement, permit, or hearing deadline

Responsible-charge statement

Engineering services are performed under the responsible charge of the appropriately licensed Grand Street Engineering professional for the applicable project and jurisdiction. Grand Street Engineering does not offer after-the-fact sealing, rubber stamping, or a stamp-only service.

Owner, equipment, geometry, criteria, or scope changes require a written change order. Final issuance remains subject to professional review and required payment.

Scope and availability review

Start with the facts you already have

Include the project address, AHJ, requested service, current problem, permit comments, deadline, and decision-makers. The five-minute response target applies during operating hours; the same-day proposal standard applies after qualification and sufficient scope information.

Written proposalScope, price, schedule, assumptions, exclusions, clearance conditions, and payment terms
FilesPlans, photographs, comments, surveys, reports, cut sheets, and records may be uploaded now or through the approved secure follow-up link
Submitting information does not create an engineering engagement. Work begins only after scope and availability review, written acceptance, required coverage and authorization clearance, and required payment.

Open Secure Project Intake Form

If the embedded form does not load, open the secure form above or call 913-423-8619. Do not send confidential engineering records by ordinary text message.

Frequently asked questions

Scope and payment questions

How many intersections are included?

The proposal identifies the exact study area, intersections, periods, scenarios, and data sources after agency scope review.

Are traffic counts included?

Only if listed. New counts, data purchases, or specialty collection are separately priced.

Can approval be guaranteed?

No. The study documents an engineering analysis; the reviewing agency makes approval and mitigation decisions.

Is this service available statewide?

No broad coverage claim is made. Availability is confirmed project by project after jurisdiction and responsible-professional review.

Ready to define the engineering path?

Send the address, AHJ, current documents, and approval deadline.

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