compacticafor multi-plant DOT contractors
stop leaving
money on
the mat
The field loop for capturing your full density bonus — every lot, every shift, across every plant.
For QC directors, VPs of operations & owners paving in pay-factor states. Built by people who have actually paved.
the density bonus playbook
01 — the shift
the shift
DOTs now pay for
consistency
For most of the industry's history, density was pass/fail — you hit spec or you argued. That era is ending. Across North America, agencies have moved to pay-factor structures that reward consistent density and claw it back when you miss.
Density and ride quality feed the pay adjustment. Top-tier consistency earns a bonus of up to ~3% of the paving pay item — real margin on a $20M season.
Composite pay factors reward density above 1.00. Contractors routinely run 1.02–1.05 — and a single bad lot drags the average down.
The new combined pay factor multiplies density and ride together. Density consistency now gates your ride bonus too.
A direct per-ton bonus for intelligent-compaction-equipped paving — the first agency to pay for the method, not just the result.
the direction of travel is one way. specs get sharper, not softer. treat density as a managed daily number and you take the bonus — and increasingly, the work.
the density bonus playbook
02 — the leak
the leak
you're capturing
70–80% of your bonus
Here's the pattern across bonus states: nobody is failing. Crews are good, mixes are dialed, most lots hit bonus. And yet, add up the season and most operations capture only 70–80% of the bonus dollars available to them.
The missing 20–30% almost never comes from a bad crew or a bad mix. It comes from inconsistency — the one shift in seven where mat temperature ran low at the joint, a roller pattern drifted, or a young operator skipped passes late in a long night. One inconsistent shift can wipe the bonus on an entire lot. And under multiplicative specs, it wipes the ride bonus with it.
That number never shows up as a line item. It shows up as margin that should have been there and wasn't — which is why most operations never chase it, until they see it calculated.
the density bonus playbook
the four-number math
do your own math
what's your leak?
Four numbers turn the leak from a feeling into a figure. Move the sliders to size it against your tonnage — then bring the real numbers to a call.
your estimated annual leak
A rough estimate from three inputs — your real leak lives in your lot data. That's the 30-minute call.
Annual tons under DOT acceptance
Current bonus capture rate (% of lots that hit bonus vs. pass vs. fail)
Bonus value per ton at full capture ($/ton)
Multiply tons × $/ton × the gap between your rate and 95%
For a mid-size multi-plant operation, the leak is typically a six-figure annual number — quietly, every season.
the density bonus playbook
03 — the root cause
why the leak persists
density management is
still a post-mortem
If the money is real, why hasn't it been fixed? Because the standard toolkit only tells you what happened — after the money is already gone.
Cores and gauges are verdicts, not coaching. By the time the cores come back, the mat is cold, the crew has moved on, and the lot is closed. You can document the miss; you can't prevent the next one.
The spreadsheet hides the pattern. Lot results live by plant, by tech. Nobody sees that Crew 3's Thursday nights run two points below their day shifts — the pattern actually eating the bonus.
First-generation IC made it worse. Heatmaps and pass counts promised proactive density and delivered post-shift mitigation — another screen explaining yesterday. Crews learned to ignore it.
The plant and the crew point at each other. Was it the mix, the temperature, or the rolling? Without shared data, the answer is a meeting full of opinions — and nothing changes before the next shift.
The veterans are leaving. The operators who could feel density through the drum are retiring. The ones replacing them are learning on lots that cost you 3%.
none of this is a people problem. it's a timing problem — every signal arrives after the decision it should have informed.
the density bonus playbook
04 — the playbook
the playbook
three steps to full capture
Contractors who capture 90%+ of available bonus don't have better luck — or usually, better crews. They run a different loop. Three steps, every paving day.
grade every shift, the morning after
Not every lot at closeout — every shift, every crew, within hours. An A–F grade plus the statistical root cause: mix, mat temperature, or rolling pattern. By morning coffee it informs tonight's shift. It also ends the plant-vs-crew argument.
coach the next shift, not the last one
Turn the grade into one specific, operator-level adjustment: tighten the pass count on the joint, hold the breakdown roller closer to the screed, watch temp on the last loads. Framed as coaching, crews adopt it; as surveillance, it dies in a week.
keep the record, run the number
Track bonus capture rate as a weekly KPI — not a season-end surprise. And keep the lot-by-lot record: pass maps, temperatures, densities, timestamps. The first time the DOT questions a lot and you have the record, the defensibility pays for the system.
the test of any density tool or process
does it change the next shift, or explain the last one?
the density bonus playbook
05 — from the field
from the field
what we've learned
Observations from working with paving contractors across Texas, Florida, the Carolinas, Virginia, and Atlantic Canada — over thousands of tracked lots.
The 'perfect' contractor doesn't exist — the consistent one does. The best shifts hit top tier while the worst 15% quietly drain the season. Consistency, not peak performance, is where the money is.
One dispute can fund the fix. We've watched a single contested lot — an $80,000 swing — make density record-keeping a board-level priority overnight. The contractors who fared best already had the record.
Adoption is won or lost in the framing. Identical technology succeeds as "a coaching tool that makes operators better" and fails as "a dashboard for the office to watch the crew." Crews can tell the difference on day one.
If it needs new iron, it stalls. Density programs tied to new roller purchases die in capital planning. The loop has to run on the mixed fleet you already own, or it doesn't run.
The multi-plant pattern is invisible from inside one plant. The biggest capture gains come from cross-crew, cross-plant comparison — the view no single QC tech, however good, can assemble by hand.
the density bonus playbook
06 — where compactica fits
where compactica fits
the loop, carried for you
Everything in this playbook can be started manually. The hard part is doing it every shift, across every crew and plant, all season — which is exactly the part we built Compactica to carry.
The per-shift A–F score with statistical root cause — mix, temperature, or rolling pattern — delivered to your QC lead by the next morning.
Operator-vs-spec scorecards and per-shift narrative emails — the coaching loop, framed the way crews actually accept it.
Lot-by-lot audit trail and a live bonus-capture KPI — the record and the number, always current.
It installs on the rollers you already own — any make, ten minutes per machine, no capex — and our team carries onboarding and support, because a tool the crew doesn't adopt captures nothing.
see your own numbers
let's run your bonus math
Bring last season's lot results to a 30-minute call and we'll run the four-number math on your actual tonnage — what you captured, what was available, and where the gap lives. If the gap isn't worth chasing, we'll tell you that too.
39 Pippy Place, St. John's, NL