Corridors, interchanges and paving trains tracked lane-kilometre by lane-kilometre. One flight before the shift and one after it: the day's quantities, the day's lifts and the day's chainage are on the record before the crew is off site.
Capture · Mission 04
The sheet above is a drawing of this. 11 capture waypoints, and every finding called as the aircraft reaches it — scroll sets the target, the mission keeps its own pace, and the page waits for it.
Sector · Highways
Four and a half kilometres of live national highway in one governed pass — under the village underpass, down the planted median, along the service roads and onto a sixteen-lane toll plaza — then the operator walks the island and logs every piece of lane equipment on it. Nobody closed a lane.
The corridor moves a kilometre a week and the earthworks quantity is still a survey crew's Thursday. By the time the volume is agreed, the material it describes is under 300 mm of subbase.
One dawn flight over the live corridor returns the surface, differences it against yesterday's and against design, and posts cut, fill and stockpile volumes by chainage band — 34 km in a single mission, ±1.6 % on the stockpile.
A paving train lays 900 m of binder course in a shift. Thickness, mat temperature and joint checks live in three different notebooks, and the only chance to argue about lift 2 is before lift 3 covers it.
Hold points sit on the chainage rather than on a form: the checkpoint opens when the paver enters the lot, takes the cores, the temperatures and the photographs, and will not close the lot without them.
The monthly claim says 4.2 lane-kilometres of wearing course. The client's engineer says 3.8. Nobody has a picture of the corridor taken on the last day of the month.
Each claim line is tied to the capture that proves it — the chainage band, the date of the flight, the lift record underneath — so the certifier reads the evidence beside the number instead of driving out to count it. The same measured lines fill the monthly return where a corridor also reports to a highway authority, which is how NHAI reporting comes off the record the claim already stands on.
34 km
Corridor on the record, interchange to interchange
100 %
Paving lifts verified before the following pass covers them
1.4 m/km
IRI on the finished wearing course, inside specification
The program runs at the paving train's speed. Two flights bracket the shift, the train reports as it lays, and every lot is proven before the next lift covers it — with traffic running the whole time.
2×/day, before the shift and after it
The dawn flight covers the corridor in one mission and lands as a surface, differenced against yesterday's and against design. Cut, fill and stockpile volumes post by chainage band at ±1.6 % before the crew is off site.
1.6CM · LINES 11 · 34KMContinuous while the train lays, off the paver
The front's chainage, the mat temperature and the roller passes land on the same record as the morning surface. The lot's evidence accrues as it is laid, not at the end of the week.
PAVING FRONT CH 12+089 · MAT 148°CEvery lot, opened when the paver enters it
Hold points sit on the chainage, not on a form. The checkpoint takes the cores, the temperatures and the photographs, and will not close the lot without them — so lift 2 is signed before lift 3 buries it.
LOT 118 · LIFTS VERIFIED 100%Behind the finish roller, on the wearing course
Ride is measured as the wearing course lands, lane by lane against the same chainage rail. Smoothness is a number on the record from the first kilometre, not a dispute at handover.
IRI 1.4 M/KM · CROSSFALL 2.5%No. The corridor is flown above live traffic — 34 km in a single dawn mission, eleven lines, no traffic management and no crew on the carriageway. The second flight after the shift closes the day.
FLIGHT · 34KM · 0 CLOSURESThe lot checkpoint opens when the paver enters it and closes only with its cores, temperatures and photographs. One hundred percent of lifts carry their evidence before the following pass covers them.
LIFTS VERIFIED 100% · LOT 118It gets caught the same morning. The 05:40 flight is differenced by 06:18, the subbase reads 40 mm short at CH 28+400, the train holds at 27+900 by 06:35 — and lot 118 is retested, signed and under binder by 09:10.
CAUGHT 06:18 · SIGNED 09:10The capture's. Each claim line carries the chainage band, the date of the flight and the lift record underneath it — the week-34 claim holds 4.2 lane-kilometres of wearing course, and the certifier reads the evidence beside the number.
CLAIM WK-34 · 4.2 LANE-KMThe paving record runs all three fronts on one rail: base at 33.0 km, binder at 29.9 km, surface at 25.8 km — each read to the day against the 34 km corridor, so the gap between courses is a figure, not a feeling.
BASE 33.0KM · BINDER 29.9KM · SURFACE 25.8KMControl diamonds on the verge — marks 04 through 06 — checked every flight, holding ±1.2 cm at 1.6 cm detail on the ground. The surface repeats flight to flight; control is laid once, not rebuilt.
FIX ±1.2CM · 1.6CMPer chainage, and dated. The corridor is captured on the same eleven lines after opening as during the build, so a length at CH 28+400 is read against its own earlier surfaces rather than against somebody's recollection of last winter. Deterioration arrives as a trend on a dated record, and the maintenance year is planned rather than discovered.
CONDITION · PER CHAINAGE · SAME 11 LINESRead overnight on a corridor like this one: two flights, the paving telemetry, the lot record and the design surface at its current revision. Three of the 27 profiles wake up to it.
06:25 · CH 28+400 · LOT 118
SEQUENCE
The 05:40 flight reads the subbase 40 mm short at CH 28+400 — hold the train at 27+900, put the grader back on, and lot 118 can retest and take binder by 09:10.
CITES: FLIGHT 05:40 · SURFACE DIFF 06:18 · LOT 118
06:55 · CORRIDOR · 34KM
CASH
The week-34 claim carries 4.2 lane-kilometres of wearing course, every line tied to the flight that proves it — the certifier reads the capture, not a recount on the shoulder.
CITES: CLAIM WK-34 · FLIGHT RECORD · LIFTS 100%
06:05 · CH 27+900 · PAVING TRAIN
TODAY
The train holds at CH 27+900 until the regraded subbase signs — then lift 3 binder, screed set at 9.0 m, mat watched at 148 °C on the record as you lay it.
CITES: LOT 118 · PAVING TELEMETRY · GRADER TASK
Earthworks quantities and stockpile volumes reconciled against design
VOLUME ±1.8% · NIGHTLYStructured gates that catch it while it's fixable
GATES/PHASE 12Pay for work that is provably there
CLAIMED VS VERIFIEDEvery measurement states the accuracy it was made to
FIX ±1.2CM · SATS 28Scheduled flights from a rooftop box; nobody drives to site
2×/DAY · 0 PILOTSFigures are a specimen record, drawn to the platform's own conventions.
Send us a chainage range and the design surface — we will fly it before one shift and hand you the quantities, the lot record and the claim lines they prove.