Transportation Engineering Services
Delta Precision Group provides managed transportation engineering teams for roadway geometric design, signal and traffic control design, and DOT submittal support, giving firms real capacity for a project pipeline without a matching growth in permanent staff.
01 / WHEN ENGINEERING CAPACITY IS TIGHT
Built for firms whose project pipeline has outrun their engineering bench.
Firms with a roadway or signal project
That has outgrown their bench strength — often a principal who landed a corridor project bigger than current staff can absorb.
Agencies needing a traffic impact study
Turned around on a development review timeline.
Consultancies juggling concurrent DOT submittals
With a limited pool of engineers who actually know a given state’s standards — often a project manager watching a signal design slip because the one engineer who knows Synchro is stretched across two other jobs.
Tell us where you’re stuck and we’ll give you a straight read on whether we can help.
02 / THE ENGINEERING CAPACITY CHALLENGE
Why firms bring in outside engineering capacity for transportation projects.
A roadway alignment has to account for sight distance, superelevation, and design speed simultaneously, and a signal timing plan has to hold up against a warrant analysis and real intersection volumes, not just look reasonable on a plan sheet. Getting either wrong doesn’t surface as a rounding error, it surfaces as a rejected DOT submittal or, worse, a safety issue after construction.
Hiring permanent staff to absorb a project surge is slow and leaves a firm carrying salary through the next lull. A generalist offshore drafting shop can produce a plan set, but transportation design is a judgment discipline built on the AASHTO Green Book, the MUTCD, and a specific state DOT’s own supplements, not a task a rules-based labeling team can pick up cold.
We built this practice around engineers who’ve actually run a Highway Capacity Manual analysis or set up a Synchro model, not generalists asked to learn transportation design on your project’s clock.
03 / THE ENGINEERING WORK
Transportation engineering support across planning, design, and project delivery.
Deliverable 01
Roadway geometric design
Horizontal and vertical alignment, superelevation, and sight distance analysis developed to AASHTO and the governing state DOT’s design criteria.
Deliverable 02
Traffic and signal design
Signal warrant analysis, timing plan development, and traffic control plans, supported by capacity and operations modeling where a project calls for it.
Deliverable 03
Transportation drafting and documentation
Plan-profile sheets, cross sections, and construction documentation built to the format your reviewing agency expects, cutting down the review cycles a submittal usually needs.
Who this is for: engineering firms with a roadway or signal project overflowing current staff capacity, and firms managing multiple DOT submittals across different jurisdictions at once.
04 / FROM SCOPE TO DELIVERY
How we integrate with your transportation project team and workflow.
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We establish which state’s criteria govern. We start by understanding which state’s design criteria and DOT supplements govern the project, since a Texas MUTCD supplement and a California one don’t read the same way.
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We build the team around the discipline. From there we build a team around the specific discipline the project needs, whether that’s geometric design, signal operations, or plan production.
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We align with your engineer of record first. Design intent is agreed with your engineer of record before drafting begins, rather than after a first draft misses the mark.
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Check-ins track real submittal milestones. You get progress check-ins tied to real submittal milestones, not radio silence until the deadline.
05 / ENGINEERING & TECHNICAL EXPERTISE
The engineering, design, and technical capabilities behind our transportation work.
Capabilities our team is equipped to deliver
- Horizontal and vertical alignment design, superelevation, and sight distance analysis to AASHTO criteria
- Signal warrant analysis and timing plan development, including capacity and operations modeling
- Traffic control plan development
- DOT-format plan-profile sheets, cross sections, and construction documentation
Scope and the specific governing DOT standard are confirmed with you before design work begins.
06 / THE DELTA Precision Group DIFFERENCE
Engineering capacity built around your project requirements, standards, and schedule.
We’re structured to work inside your project team.
Coordinating with your engineer of record on design intent, rather than handing back a plan set and hoping it matches what you had in mind.
Our engineers work against the actual design criteria your project answers to.
AASHTO, the MUTCD, and the specific state DOT supplement — and we name those standards because credibility here comes from specificity, not a general claim of competence.
We’re built for firms that want a design partner across multiple projects, not a single transaction.
Though we’re glad to prove that out on one defined project first.
07 / FIND THE RIGHT FIT
Choose the engineering support model that fits your project.
Dedicated production capacity
An ongoing team sized to your transportation project pipeline, handling design and drafting across concurrent submittals.
Project capacity
A single roadway, signal, or traffic study with a defined scope and deadline, a common first step before a larger relationship.
Surge and overflow support
Additional design or drafting capacity during bid season or a compressed DOT review window, released once the surge passes.
Not sure which fits? Tell us where you’re stuck and we’ll recommend the right approach.
08 / FAQ
Frequently asked questions about transportation engineering services.
Will a signal timing plan actually hold up against real intersection volumes, or just look right on paper?
Our engineers build timing plans against warrant analysis and modeled operations, not a generic template applied regardless of the intersection’s actual traffic pattern.
Do you know our specific state DOT’s standards, or just generic transportation engineering?
We confirm the governing state’s design criteria and DOT supplement at the start of every engagement and build the team around that specific standard rather than a one-size-fits-all approach.
Will working with an outside team slow down our internal review process?
We coordinate directly with your engineer of record on design intent before drafting starts, which is what keeps review cycles short instead of long.
How do you handle project data and drawings on public infrastructure work?
Data handling and confidentiality requirements are confirmed with you at the start of every engagement, matched to your firm’s and your client’s expectations.
Can we bring you in for one project before deciding on anything longer term?
Yes, and that’s a common way engagements with us begin. A single roadway or signal project is a reasonable way to see how we work before committing to more.
09 / Get Started
Ready to add transportation engineering capacity that actually knows the standards it’s designing against?
Tell us your project scope. We’ll show you the team we’d build around it.