WorkflowField Service & Work Management

Locate Request Screening

Locate request screening that clears the no-conflict tickets and puts a standby on every machine dig over a 33 kV+ cable or trunk main

Clears go back in minutes; every machine dig over a high-voltage cable gets a standby.

See one case, screen by screen ↓
target100%of machine digs over a 33 kV+ cable or trunk main given a standby crew, a pre-dig meeting and trial holes by hand
estimated$14.9Ma year of site visits avoided: about 59,500 trucks not sent to digs that touch nothing (186,000 tickets × (61% − 29%) × $250)
target100%of tickets answered inside the 2-working-day clock; clears go back in minutes
demo527of 742tickets on the morning's board cleared with a no-conflict reply, each with the reason it was clear and 5% sampled for a person to check
The problem

Why a one-call queue sends trucks to empty digs and paint marks to dangerous ones

Every excavation in the service area starts with a ticket from the one-call centre: who is digging, where, how and how deep. Each one needs a positive response inside a legal clock — two working days at Lumina's one-call centre — either “clear, nothing of ours here” or “we will mark it”. Lumina Utilities gets about 186,000 tickets a year, and a coordinator still opens most of them, finds the dig on the GIS viewer and checks the layers by hand. With 700 on the board, doubt becomes a truck roll: Lumina sends a locator to 61% of tickets, when only 29% have a Lumina asset within the safe-dig buffer.

Meanwhile the digs that could kill someone look routine. The ticket says “tracked excavator, 1.8 m”; the asset record says “132 kV, 1.1 m”. Nobody reads the two together, so the dig gets paint marks and nobody on site. HSE's HSG47 says power tools should stay 500 mm or more from a service's indicated line, with the service found by careful hand digging and trial holes. Excavator clearance not kept, locator error and digging before potholing were 41% of the damage root causes in CGA's DIRT data for 2023.

typical196,977reportsunique reports of damage to buried facilities, analysed in CGA's DIRT for 2024 — the industry is not on track to halve damages
typical41%of damage root causes in 2023 were clearance not kept, locator error or digging before potholing
typical$250–500a visitthe published cost of one truck dispatch
Where the working days go, for every 1,000 ticketsestimated
By hand46 days
With the solution20.6 days
  • Reading each ticket and checking it on the map4 → 0.5 d
  • Writing and sending no-conflict replies1 → 0.1 d
  • Locator visits to digs with nothing of ours in the buffer21 → 0 d
  • Mark-outs where a cable or main is in the buffer19 → 19 d
  • Arranging standbys, pre-dig meetings and trial holes1 → 1 d

Estimated coordinator and locator working days per 1,000 tickets, by hand and with the solution. Lumina visits 61% of tickets today and 29% have an asset in the buffer; a locator does about 15 mark-outs a day.

How it works

How a ticket moves

Five agents read, map, score and answer every ticket; the coordinator confirms each standby.

What comes in
Tickets inone-call feed · 742 on the board today
Agents at work
Ticket readermethod, depth, extent
Then
Asset overlaydig area + 3 m buffer
Then
Risk scorerscore + rule floors
Then
Clear responder
Locator dispatcher
A person decides
Damage prevention coordinatorconfirms every standby
What comes out
No-conflict replies
Risk-ranked locates
Standby on site
One case, step by step

One morning's tickets, from the one-call feed to a standby on site

Lumina Utilities' Westmere depot, Tuesday 13 October 2026. At 16:18 yesterday, Halvorsen Civils filed ticket 2610-18342 to renew the storm drain along Corran Road with a tracked 21 t excavator. Here is what happens next, screen by screen, in the working solution.

  1. 01Morning

    704 tickets on the board, 38 new since yesterday

    Nadia Farouk · Damage prevention coordinator

    Nadia owns the response to every ticket in Lumina's area. The dig map opens on the Westmere depot: 704 tickets on the board, 89 replies due today, none late — 7 standby, 36 elevated, 161 locate and 500 clear. Thirty-eight new tickets have come in from the one-call centre since 16:05 yesterday, waiting to be screened over the buried cables and mains, drawn in the colours field crews know.

    “I can't look at 700 maps, so I send people to anything I'm not sure about.”

  2. 0207:42 · one click

    Five agents screen the 38, in order

    Ticket reader, Asset overlay and Risk scorer

    Nadia presses Screen 38 new tickets. The ticket reader reads work, method, depth and extent from each description; four gave no depth, so the method's worst case is used. The asset overlay draws 38 dig areas with a 3 m buffer and finds 61 Lumina assets inside, and holds one area where as-builts are not yet posted. The risk scorer scores 37: 27 clear, 7 locate, 2 elevated, 1 standby on Mill Lane over a 600 mm trunk main.

    Clear responder: “sent 27 no-conflict replies · code 10 to the one-call centre and an email to each excavator · 07:43”

  3. 0307:43

    Corran Road turns red: standby required

    Risk scorer

    The last dig area draws along Corran Road and crosses the 132 kV cable route. Halvorsen Civils plan a tracked 21 t excavator to 1.8 m; the Westmere–Ashby 132 kV circuit 2 was laid at 1.1 m in the 2009 as-laid survey, so the bucket would go 0.7 m below it. Score 94 of 100. The depth section on the right draws the trench to its depth, each asset at its recorded depth with its 0.5 m safe margin.

    “Rule: a mechanical excavator within 3 m of a cable of 33 kV or more always gets a standby.”

  4. 04What if

    Switch to vacuum excavation, and the score falls to 69

    Nadia Farouk · Damage prevention coordinator

    Nadia tries the other methods on the depth section. With vacuum excavation to the same 1.8 m, the method adds 6 points instead of 22 and the safe-margin points fall from 18 to 9, so the score falls to 69 and the outcome becomes elevated: the locator marks out, then meets the excavator on site before work starts. The rule floor no longer applies. The change is a what-if only — the ticket still says mechanical excavator.

    “What-if: the ticket says mechanical excavator to 1.8 m (score 94). Not saved.”

  5. 05The ticket

    Every value read from the ticket, every asset inside the dig

    Ticket reader and Asset overlay

    The ticket as received is shown with the start, location, depth and method highlighted where the ticket reader found them. Six assets lie inside the dig area and its 3 m buffer: the 132 kV circuit crossing at chainage 76 m, its protection signalling fibre at 78 m, the Tanner's Row 150 mm main at 104 m and 11 kV feeder at 120 m, six 25 mm service pipes, and a 450 mm ductile iron trunk main 2.1 m beside the trench — 1.4 m ±0.4 from a 1978 drawing, estimated.

    Why 94: 132 kV cable +35 · mechanical excavator +22 · dig reaches the 0.5 m safe margin +18 · 2 crossings +8 · excavator history +7 · depth uncertain +4

  6. 06Who is digging

    Halvorsen Civils carries +7 for its strike history

    Risk scorer

    The excavator history adds points for strikes in the last 24 months: one strike +4, two +7, three or more +10. Halvorsen Civils has 412 tickets in 12 months and 2 strikes — an 11 kV cable at Linden Close in February 2026, mini excavator, clearance not kept, and a 100 mm main on Ashby Road in July 2025. Nadia can send a safe-dig briefing before Thursday's job.

    “Strikes in the last 24 months add to each new ticket's risk score.”

  7. 07Decide

    The precautions, drafted and confirmed

    Nadia Farouk · Damage prevention coordinator

    The locator dispatcher has drafted everything the dig needs: Tomás Ruiz, HV-qualified, marks out Wed 14 Oct 09:30, before the reply is due; a pre-dig meeting on site Thu 15 Oct 07:00 with Callum Pryce, Halvorsen's site foreman; Ashby crew 2 on standby 07:00–15:30; trial holes by hand at chainage 76 m and 120 m; and safe-dig instructions to Halvorsen Civils. Nadia signs, and it goes to the cable engineer.

    “No machine within 0.5 m of the indicated line until the asset is exposed.”

  8. 08Approved

    The cable engineer approves, and the reply goes back

    Dev Mistry · Third-party works engineer, transmission cables

    Any work within 3 m of a 33 kV or 132 kV cable needs Dev's approval. Once he approves, code 30 — marked, site meeting and standby — goes to the one-call centre, and the safe-dig instructions, with asset plans, depths, the 0.5 m margin and the standby contact, go to Halvorsen Civils.

    “Dev Mistry approved · code 30 sent to the one-call centre”

  9. 09The field day

    Locators by qualification, standbys against the dig start

    Locator dispatcher

    The locator board shows 8 locators and 113 mark-outs in route order, with travel time from each depot. HV work goes only to HV-qualified locators: Tomás Ruiz in Westmere carries 16 jobs, 79% booked. Standby crews are booked against each dig start — Ashby crew 2 (Owen Hart, Sina Taufa) for Corran Road on Thursday, and the trunk mains crews for the big water mains.

    “HV work goes only to HV-qualified locators; standbys are booked against the dig start.”

  10. 10Later

    A person checks 5% of the clears

    Nadia Farouk · Damage prevention coordinator

    Every clear says why it was clear — the nearest asset and its distance against the 15 m clear distance — with the reply time and code 10. Today's sample is 26 of 527 clears, and Nadia marks each Agree or Should have been located. Three tickets on the new Kestrel Fields estate were held, not cleared: the phase 2 as-built drawings for LV and water are not posted yet, so they went to a locator.

    “Any area with as-builts still to post is held, not cleared.”

Who it’s for

Built for everyone who answers a dig.

The same Corran Road ticket, seen by the four people at Lumina who answer for it — what their day looked like, and what it looks like now.

NF
Nadia FaroukDamage prevention coordinator, Lumina Utilities · confirms every standby and elevated ticket; owns the screening rules
Damage prevention coordinator
Before
Starts at 07:00 with 700+ tickets on the one-call feed and a 2-working-day clock on each. “I can't look at 700 maps, so I send people to anything I'm not sure about.”
Now
Opens a map where the clears have already gone back with their reasons, and decides only the tickets near a cable or main — with the depth section, the score and the drafted precautions in front of her.
TR
Tomás RuizLocate technician, HV-qualified · Westmere depot
Locate technician
Before
Does 14–20 mark-outs a day and drives to many that touch nothing. “Half my day I paint ‘no Lumina assets’ on a pavement.”
Now
Gets a route of mark-outs where something of Lumina's is in the buffer, with the HV work kept for HV-qualified locators and the standby and site meeting already booked.
DM
Dev MistryThird-party works engineer, transmission cables · approves works within 3 m of 33 kV and 132 kV
Third-party works engineer
Before
Approves any work near the transmission cables. “A tracked excavator over a 132 kV joint is the call I dread.”
Now
Gets each dig near a 33 kV or 132 kV cable already signed by the coordinator, with the method, the depth against the cable's recorded depth, the standby crew and the trial-hole positions.
GL
Grace LindqvistWater network engineer, trunk mains · approves works near mains of 300 mm or more
Water network engineer
Before
Protects the 300 mm and larger mains, where one burst floods a street. “Our 1978 drawings say 1.4 metres. I'd want a trial hole.”
Now
A mechanical method within 3 m of a trunk main of 300 mm or more is always a standby from the trunk mains crew with trial holes by hand, and an uncertain depth adds to the score.
Built on the engine

5 agents. Each with one job, and hard limits.

Five agents read, map, score and answer every ticket; the coordinator confirms each standby.

Ticket reader

Reads each one-call ticket and the excavator's markup — work type, dig method, maximum depth, length and width, start date and duration — and draws the dig area on the map from the location text, citing the sentence each value came from.

  • Never invents a depth: if none is stated, it uses the method's worst case and flags it
  • Never guesses a method that is not written
  • Cites the ticket sentence for every value
Asset overlay

Puts the dig area and a 3 m buffer over Lumina's electricity and water records and lists every asset inside, with its recorded depth, depth source and uncertainty, whether it crosses or runs beside the dig, distance and chainage.

  • An area with as-builts still to post is never treated as empty
  • The depth source is always shown
Risk scorer

Scores each ticket 0–100 on dig method and depth against each asset's recorded depth less the 0.5 m safe margin, asset class, crossings, excavator history and depth certainty, then applies the standby floors.

  • Never scores below a standby floor: a floor can raise an outcome, never lower it
  • Every point has a reason
Clear responder

Sends response code 10 — clear, no conflict — to the one-call centre and an email to the excavator when nothing of Lumina's is within 15 m and the area is not held, records why it was clear and puts 5% into the daily audit sample.

  • Never clears inside the buffer of any asset
  • Never clears a held area
Locator dispatcher

Assigns each locate to a qualified locator in the area inside the response clock, and drafts the standby crew, pre-dig meeting, trial holes and safe-dig instructions for standby and elevated tickets.

  • HV work only to HV-qualified locators
  • A standby is never confirmed without the coordinator
Damage prevention coordinator

Confirms every standby. The agents propose; a named person decides.

Ask in plain words

Ask about any ticket, dig or excavator

Ask about any ticket, dig or excavator in plain words — or say what to change. Every answer points to the ticket, the asset record or the rule behind it.

Why does 2610-18342 need a standby?

Halvorsen Civils plan a tracked 21 t excavator to 1.8 m along Corran Road. The Westmere–Ashby 132 kV circuit 2 crosses the trench at chainage 76 m, laid at 1.1 m in the 2009 as-laid survey, so the bucket would go 0.7 m below it. Score 94, and a mechanical dig within 3 m of a 33 kV+ cable always gets a standby. The standby is drafted for Thu 15 Oct 07:00–15:30 with Ashby crew 2 and needs your sign-off.

How has Halvorsen Civils done on past tickets?

412 tickets in 12 months and 2 strikes in 24: an 11 kV cable at Linden Close in Feb 2026 (mini excavator, clearance not kept, 212 customers off for 3 h 40 min) and a 100 mm main on Ashby Road in Jul 2025. That adds +7 to each of their tickets. One dig without a ticket was reported. A safe-dig briefing before Thursday's Corran Road job would be worth it.

Add a rule: vacuum digs within 1 m of a 132 kV cable need a site meeting

Added as a draft rule: vacuum excavation within 1 m of a 132 kV cable is always at least elevated, with a site meeting before work. Today it would change one ticket: 2610-18380, signal ducting on Tanner's Row, 1.0 m from the cable — it is already elevated, so nothing moves. Dev Mistry has been asked to approve it.

Every screen

The working solution, as it ships.

13 screens from the working solution, on its sample data. Pick one to see it large.

The dig mapEvery ticket's dig area over the buried cables and mains, the risk-ranked stream, and the Corran Road ticket with its depth section: 94, standby required.
The morning board704 tickets on the board, 89 replies due today and none late, and 38 new from the one-call centre waiting to be screened.
Screening runThe agents read, draw, overlay and score the 38 new tickets in order; 27 no-conflict replies go back at 07:43.
What if the method changesSwitch the dig to vacuum excavation and the score falls from 94 to 69: elevated, a locate and a site meeting, no standby.
The ticketThe ticket as received with each value highlighted, the six assets inside the dig area and buffer, the drafted precautions and the score.
Confirm the standbyLocator, pre-dig meeting, standby crew, trial holes and safe-dig instructions, signed by the coordinator and sent to the cable engineer.
Approved and answeredThe cable engineer approves; code 30 goes to the one-call centre and the safe-dig instructions to the excavator.
All tickets742 tickets by outcome and dig start, with method and depth, the nearest Lumina asset, the score and the response due.
Locators and standby crewsToday's mark-outs by technician in route order, HV work only for HV-qualified locators, and the standby crews booked this week.
Excavator historyWho digs in Lumina's area, tickets, strikes and no-ticket digs, and the points each excavator adds to a new ticket's score.
Strikes and near misses23 strikes in 12 months by root cause, and each recent strike with its ticket, the score then and the score today.
Clear auditToday's 5% sample of clears with the reason each was clear, and the Kestrel Fields tickets held until the as-builts are posted.
Screening rulesStandby floors, distances and thresholds, weights, response codes and who decides — versioned and approved.
Governance

Built for damage prevention: every reply explained, every standby signed.

Every outcome cites its inputsEach score shows its points and their reasons: the ticket sentence the method and depth came from, the asset record with its depth source and uncertainty, and the rule that applied.
Standby floors no score can go belowA mechanical method within 3 m of a cable of 33 kV or more, or of a trunk main of 300 mm or more, is always a standby crew, a pre-dig meeting and trial holes, whatever the score. A floor can raise an outcome, never lower it.
People confirm, engineers approveThe coordinator signs every standby and elevated ticket before a reply goes back. Works near 33 kV and 132 kV cables need the transmission cable engineer's approval; works near the big mains, the trunk mains engineer's.
Every clear explained and sampledEach no-conflict reply says why it was clear. Every day 5% of clears are sampled for a person to check, and any area with as-built drawings still to post is held and sent to a locator, never cleared.
Rules versioned and approvedBuffers, margins, thresholds, weights and floors are the damage prevention team's own rules. Changes are saved as a new version and approved — version 14 was approved by Nadia Farouk on 2 Oct.
Strikes teach the score, with approvalEvery strike and near miss is tied back to its ticket and to what the score said then and would say today. Weight changes learned from outcomes are proposed, never applied without approval, and every response sent to the one-call centre stays on the record.
Configuration

Your damage prevention rules, not ours

The buffer, the clear distance, the safe margin, the thresholds, the weights and the standby floors are the damage prevention team's settings, versioned and approved.

SettingDefaultChoose from
Standby floorsMechanical within 3 m of a 33 kV+ cable or a 300 mm+ trunk mainAlways a standby crew, a pre-dig meeting and trial holes · approved by Dev Mistry or Grace Lindqvist · any dig where as-builts are still to post is never cleared
Buffer around the dig area3 mEvery asset inside the buffer is scored
Clear distance15 mA no-conflict reply needs nothing of Lumina's within this distance
Safe margin around an asset0.5 mFrom HSE HSG47: no power tools within 0.5 m of the indicated line
Outcome thresholdsStandby at 80 · elevated at 50Score at or above which a ticket gets a standby, or a locate and site meeting
Asset class weights132 kV 35 · 33 kV 30 · trunk main 2411 kV cable 18 · low-voltage cable 10 · water main 10 · fibre duct 8
Dig method weightsPiling rig 24 · mechanical excavator 22Directional drill 20 · breaker or power tools 18 · vacuum excavation 6 · hand dig 3
Clear audit sample and response clock5% · 2 working daysShare of clears a person checks each day · the clock from receipt, in working days
Connections

Works with the records a locate desk already runs on

One-call (811) ticketstickets as they arrive, the excavator's markup, and response codes 10–40 sent back
Electric network records132 kV, 33 kV, 11 kV and low-voltage cables and fibre, with recorded depth and source
Water network recordstrunk mains, distribution mains and service pipes, with recorded depth and uncertainty
As-built registerdrawings still to post, so a new estate is held instead of cleared
Excavator and strike historytickets, strikes, no-ticket digs and near misses, tied back to each ticket
Locator board and crew rosterslocator qualifications, routes and the standby crew calendar
What it changes

The difference, in numbers.

Every figure is labelled: a target the solution is built to, an estimate, a typical published result, or a proven one.

target
100%
of machine digs over a 33 kV+ cable or trunk main given a standby and trial holes
9 of 9 high-risk digs
with a standby this week
estimated
$14.9M
a year of site visits avoided: about 59,500 trucks not sent to digs that touch nothing
Visited today61% of tickets
With screening29%
target
100%
of tickets answered inside the 2-working-day clock; clears go back in minutes
742 of 742 on time
on today's board

“demo” = seen in the working solution, on its sample data · “target” = the design goal, measured in the live solution · “estimated” = our estimate: $14.9M = 186,000 tickets a year × (61% visited today − 29% with an asset in the buffer) × $250 a visit, about 59,500 visits; the day split is estimated too · “typical” = published figures: CGA DIRT reports for 2023 and 2024 (damages and root causes); $250–$500 a dispatch (S&C Electric, cited by Ventavid). Safe-digging context: HSE HSG47, Avoiding danger from underground services. Lumina Utilities, the excavators, places and tickets are fictional; people named on this page are characters in the working solution.

Questions

What damage prevention teams ask us.

What is locate request screening?

Locate request screening is the check a utility makes on every one-call (811) excavation ticket before it answers: is anything of ours inside the dig, and how dangerous is the work? Locate Request Screening does that check with five agents. They send the no-conflict replies, rank the rest by risk, and draft a standby crew and pre-dig meeting for every machine dig within 3 m of a 33 kV+ cable or 300 mm+ trunk main. The damage prevention coordinator decides.

How does 811 ticket screening software work?

The ticket reader reads the dig method, depth, extent and start from the ticket and draws the dig area. The asset overlay lists every cable and main inside the area and a 3 m buffer, with its recorded depth and how sure that depth is. The risk scorer weighs method and depth against each asset's depth less a 0.5 m safe margin, plus asset class, crossings, excavator history and depth certainty, and applies the standby floors.

Can it auto-clear no-conflict tickets safely?

It clears only when nothing of the utility's is within the clear distance — 15 m in the sample rules — and the area is not held. Each clear records why it was clear, and 5% are sampled every day for a person to mark Agree or Should have been located. Any area with as-built drawings still to post is held and sent to a locator, never cleared.

How does it decide when a dig needs a standby?

A score of 80 or more is a standby; 50 to 79 is elevated, a locate and a site meeting. On top of the score, standby floors are hard rules: a mechanical method within 3 m of a 33 kV+ cable or a 300 mm+ trunk main always gets a standby, a pre-dig meeting and trial holes by hand. In the sample, a tracked excavator to 1.8 m over a 132 kV cable at 1.1 m scores 94.

Does it cover water mains as well as electric cables?

Yes. It reads electricity and water records together — 132 kV to low-voltage cables, fibre, trunk mains, distribution mains and service pipes — with each asset's depth source and uncertainty. A trunk main recorded from a 1978 drawing at 1.4 m ±0.4 adds points for the uncertain depth, and works near the big mains go to the water network engineer.

Do people stay in control of standbys and replies?

Yes. The agents draft; the coordinator confirms every standby and elevated ticket before a reply goes back, and works within 3 m of a 33 kV or 132 kV cable need the cable engineer's approval. The agents cannot clear inside a buffer, lower a standby floor or confirm a standby, and weight changes learned from strikes are only proposed.

Can we set our own buffers, thresholds and standby rules?

Yes. The buffer, clear distance, safe margin, standby and elevated thresholds, asset and method weights, standby floors, clear audit sample, response clock, response codes and approvers are all settings. Changes are saved as a new version and approved.

How long does it take to go live?

The Agentic Solution Engine builds and deploys it from your requirements and documents — your one-call response rules, safe-digging procedures, asset records and a sample of past tickets and strikes — and it goes live once every quality gate has passed. We will walk you through it on your own tickets first.

See it on
your tickets.

We'll run Locate Request Screening on a sample of your own one-call tickets and asset records.