What if counts are incomplete?

If counts are incomplete, document why, apply conservative adjustment factors, and schedule re-sampling if practical. Provide sensitivity ranges in the report so reviewers can see how conclusions change with alternate inputs.

Is an engineer signature required?

Many agencies require a licensed professional engineer to sign and date traffic estimations. Verify local rules and include license number to avoid processing delays.

Can the report be submitted electronically?

Yes, most jurisdictions accept PDF submissions. Confirm agency portal requirements for file formats and whether a notarized or digitally signed certification is required.

Do I need notarization or witnesses?

Notarization or witness requirements vary by state and agency. Check the receiving agency guidance; some require notarized affidavits for certified data.

How should I handle revisions?

Version control is essential: provide a revised cover letter, track changes summary, and replace only affected attachments while preserving prior certified versions for auditability.

What authentication level is sufficient for e-signatures?

Acceptable authentication ranges from email-based links to multi-factor or identity-proofing; for regulated or high-liability submissions, stronger signer authentication and an audit trail are advisable.

Electronic Signature
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Miscellaneous
Transportation Traffic Estimations

Transportation Traffic Estimations

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TRANSPORTATION TRAFFIC ESTIMATIONS

This Transportation Traffic Estimations Agreement (the Agreement) is entered into effective as of between Client Name: and Consultant Name: .

WHEREAS

WHEREAS, Client requires professional traffic estimation services for planning, design and appraisal of transportation infrastructure at the location(s) described below; and

WHEREAS, Consultant represents that it has the technical competence, equipment, personnel and licenses necessary to perform traffic data collection, modeling and estimation services in accordance with professional standards; and

WHEREAS, the parties desire to set forth the terms under which Consultant will prepare traffic estimations, assumptions and deliverables for the Project described below.

PROJECT IDENTIFICATION

Project Name Project Location

SCOPE OF WORK

Consultant shall perform the services described below to develop transportation traffic estimations, including data collection, processing, modeling, and written reporting. Deliverables, assumptions and methodological notes shall be included in the final submission.

Detailed Scope of Work

METHODOLOGY & ASSUMPTIONS

The Consultant will employ accepted traffic engineering and transportation planning methods to produce estimated traffic volumes and growth projections. The principal methodologies to be used (check all that apply):

Automatic traffic counters (ATC)
Manual turning movement counts
Travel demand modeling and factor application
Origin–destination survey or sampling

Key Assumptions

ESTIMATED DATA SUMMARY

Average Daily Traffic (ADT) Peak Hour Volume (two-way) Projected Annual Growth Rate

DELIVERABLES & SCHEDULE

Primary Deliverables Estimated Delivery Schedule

PAYMENT TERMS

Client shall pay Consultant the fees and expenses set forth below in accordance with this Paragraph. Invoices shall be rendered in accordance with the payment schedule and are due within thirty (30) days of invoice date unless otherwise stated.

Total Estimated Fee Payment Schedule Late Payment Fee

TERM AND TERMINATION

This Agreement shall commence on and continue until unless earlier terminated as provided herein.

Either party may terminate this Agreement for convenience upon days' prior written notice. Upon termination, Consultant shall be compensated for work performed and reimbursable expenses incurred through the effective date of termination.

CONFIDENTIALITY

Each party agrees to maintain in confidence all non-public information obtained from the other party in connection with this Agreement and to use such information only for performance under this Agreement. Confidential information does not include information that: (a) is or becomes generally available to the public other than by breach of this Agreement; (b) was known to the receiving party without restriction prior to disclosure; or (c) is rightfully received from a third party without restriction. Consultant may disclose summary estimates to subcontractors and reviewers on a need-to-know basis provided those recipients are bound by confidentiality obligations no less restrictive than those herein.

LIMITATION OF LIABILITY

Consultant's services are professional in nature and reflect Consultant's best judgment. To the maximum extent permitted by law, Consultant's total liability to Client for any claim arising under this Agreement shall not exceed the total fees paid to Consultant under this Agreement. In no event shall Consultant be liable for consequential, incidental, special or punitive damages.

GOVERNING LAW

This Agreement shall be governed by and construed in accordance with the laws of the State of without regard to its conflict of law principles.

ENTIRE AGREEMENT

This Agreement, including any attachments or referenced exhibits signed by the parties, constitutes the entire agreement between the parties with respect to the subject matter and supersedes all prior and contemporaneous agreements, representations, and understandings. Any modification must be in writing and signed by authorized representatives of both parties.

ACKNOWLEDGMENT

The parties acknowledge that the traffic estimations are professional opinions based on the data and assumptions available at the time of analysis. Actual traffic conditions may vary. Client agrees to provide access to sites and to disclose material information necessary for Consultant's performance.

Client Name:

By:

Date:

Consultant Name:

By:

Date:

What Transportation Traffic Estimations Are and when they're used

Transportation Traffic Estimations are structured forecasts of vehicle, pedestrian, and freight movements for a defined project, corridor, or time period. They synthesize observed counts, origin-destination data, land-use inputs, and modeled growth factors to predict peak and off-peak volumes, turning movements, and delay metrics. Practitioners use these estimates for roadway design, signal timing, environmental review, safety analysis, permit applications, and cost-benefit studies. Outputs commonly include hourly volume tables, level-of-service assessments, and scenario runs that compare 'no-build' and 'build' conditions for planning and permitting decisions.

Why clear, defensible traffic estimates matter

Accurate Transportation Traffic Estimations support regulatory compliance, design decisions, and public-interest review. They provide documented rationale for capacity changes, multimodal accommodations, and mitigation measures, making reviews by agencies and stakeholders more efficient and reducing later redesign risk.

Who prepares and relies on these estimates

Typical preparers and recipients include technical staff, permitting agencies, and project stakeholders; each has distinct needs and expectations.

Transportation planners and traffic engineers who compile data, run models, and justify design parameters.
Municipal review agencies and MPOs that evaluate consistency with land use, safety, and network performance.
Developers, consultants, and environmental reviewers who use estimates to scope mitigation and permit conditions.

Clear roles and a documented chain of custody for data and assumptions improve reviewability and reduce iterations during approvals.

Essential components of a professional traffic estimation report

A complete Transportation Traffic Estimations package combines raw counts, modeling steps, assumptions, and appendices so reviewers can reproduce or audit results without ambiguity.

Data Inventory

List of sources: count locations, dates, sample durations, and any third-party datasets used in modeling, with quality notes.

Base Traffic Volumes

Observed hourly/daily volumes and turning movement counts tabulated by approach and movement for the analysis year.

Growth and Adjustment Factors

Methodology for applied trend growth, seasonal adjustments, diverted traffic, and site-generated trips with numeric factors.

Model Runs

Description of microsimulation or capacity analyses performed, including software and parameter settings.

Results and Metrics

Outputs: peak hour volumes, level of service, delay, queue lengths, and recommended mitigation with quantitative values.

Appendices

Supporting files: raw counts, calibration checks, model inputs, and signed certifications from responsible engineers.

Stepwise process to prepare the traffic estimation

Follow these sequential steps to produce a reproducible Transportation Traffic Estimations deliverable for review and filing.

01

Collect Data: Gather counts, crash history, and land-use inputs at targeted locations.
02

Establish Base Volumes: Tabulate hourly turning movements and validate against historical records.
03

Apply Adjustments: Incorporate seasonality, background growth, and project-generated trips.
04

Document & Certify: Compile results, include appendices, and obtain engineer signature and date.

How to set up an online workflow for estimates and reviews

Configure a stepwise digital workflow so reviewers receive the right version and attachments in order.

Field	Configuration
Upload Package	Require PDF/A report, CSV counts, and model input files in a single submission.
Signer Role	Assign Responsible Engineer as primary signer with license field required.
Reviewer Sequence	Set routing: Engineer → Project Manager → Agency Reviewer in role order.
Notifications	Enable email alerts for each completed step and overdue reminders.

Typical routing and submission destinations

Traffic estimates commonly move through a predictable routing path from preparer to permitting authority and file archive.

Preparer: Engineer compiles package and uploads final signed PDF.
Internal Review: Project manager and QA review attachments and completeness.
Agency Submission: Submit to city/municipal transportation or MPO via portal or email per agency rules.
Record Retention: Store a certified copy in project records and archives for retention period.

Digital signing and delivery requirements for submission

Electronic submission should maintain integrity, an audit trail, and meet agency authentication expectations.

File Formats: PDF/A for reports; CSV or Excel for raw counts; native model files when requested.
Authentication: Include signer identity, timestamp, and method used (email, SMS, or stronger ID).
Integrations: Support for cloud storage and agency portals reduces manual uploads.

Choosing a platform with robust audit logs, secure storage, and common integrations simplifies agency acceptance and long-term recordkeeping.

Timing considerations and common submission deadlines

Understand submission windows and dependent timelines to coordinate counts, modeling, and agency review.

Data Collection Lead Time:

Schedule counts 2–6 weeks before report due date to allow QA and re-sampling.

Permit Application:

Agency review periods typically range 15–60 days depending on jurisdiction.

Revision Cycles:

Allow 7–21 days per review iteration for model updates and sign-offs.

Effective Date:

Specify project effective date clearly; it affects horizon-year calculations.

Record Retention Start:

Retention begins from report date or certification date, whichever is later.

Common mistakes to avoid when preparing estimates

Using short-duration counts without seasonal adjustment that misrepresent average daily conditions.
Failing to document growth-rate assumptions or the source of demographic projections.
Submitting unsigned or mismatched engineer certifications that delay permit approvals.
Omitting raw count files or model inputs that prevent agency reproduction of results.

Consequences of incomplete or inaccurate traffic estimates

Permit Delays: Incomplete submissions can trigger multi-week review holds and additional data requests.

Design Rework: Underestimated volumes may require costly post-approval redesigns.

Financial Exposure: Mitigation commitments based on faulty estimates can lead to unplanned costs.

Liability: Engineers may face professional liability if certification errors lead to safety issues.

Regulatory Noncompliance: Failure to meet agency documentation standards can result in rejected applications.

Public Trust: Perceived inaccuracies erode stakeholder confidence and complicate hearings.

Typical vendor pricing and capability snapshot for signing and filing

Basic pricing and common capability distinctions among major eSignature vendors are summarized below for planning purposes; feature details vary by plan and by vendor.

	signNow	DocuSign	Adobe Sign	PandaDoc	HelloSign
Starting Price	$8/user/mo	$15/user/mo	$14/user/mo	$19/user/mo	$15/user/mo
Free Trial	7-day free trial	Varies by plan	Varies by plan	Varies by plan	Varies by plan
Bulk Send	Yes	Yes	Yes	Yes	Varies by plan
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	Varies	Varies
Envelope Cap	No envelope cap	100 envelopes/user/year	Varies by plan	Varies by plan	Varies by plan

Representative use cases for Transportation Traffic Estimations

Practical examples show how estimates support approvals, design, and environmental review.

Municipal Road Upgrade

A city demanded peak-hour turning movement tables for a proposed corridor redesign

The consultant provided calibrated counts and modeled future-year volumes
The report included signed certification, an appendix of raw counts, and a mitigation list that the agency used to scope construction phasing and signal timing changes.

Commercial Site Access

A retail developer required a site access study for a new shopping center

Trip generation and distribution were prepared with site-specific adjustments
The traffic estimation package supported driveway permit approval and conditioned a right-turn lane as mitigation.

Frequently asked questions about preparing and submitting traffic estimates

Answers to common questions that cause review delays or resubmissions.

Need help? Contact support

What if counts are incomplete?
If counts are incomplete, document why, apply conservative adjustment factors, and schedule re-sampling if practical. Provide sensitivity ranges in the report so reviewers can see how conclusions change with alternate inputs.
Is an engineer signature required?
Many agencies require a licensed professional engineer to sign and date traffic estimations. Verify local rules and include license number to avoid processing delays.
Can the report be submitted electronically?
Yes, most jurisdictions accept PDF submissions. Confirm agency portal requirements for file formats and whether a notarized or digitally signed certification is required.
Do I need notarization or witnesses?
Notarization or witness requirements vary by state and agency. Check the receiving agency guidance; some require notarized affidavits for certified data.
How should I handle revisions?
Version control is essential: provide a revised cover letter, track changes summary, and replace only affected attachments while preserving prior certified versions for auditability.
What authentication level is sufficient for e-signatures?
Acceptable authentication ranges from email-based links to multi-factor or identity-proofing; for regulated or high-liability submissions, stronger signer authentication and an audit trail are advisable.

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