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VECTOR-D™: Multi-Impact Delay Screening

A crash rating describes one impact. A determined attack can bring many. VECTOR-D estimates how many deliberate, repeated impacts a rated line can take under stated assumptions, and converts that into a delay band to compare with the response time.

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How long will the line hold?

  • Delay band in minutes, from a conservative bound to a best estimate
  • Every vehicle class checked against the line
  • Calibration tiers when a project needs more certainty
  • Screening that complements published guidance on vehicle attack delay

VECTOR-D produces screening results. Design decisions rest on an engineer-reviewed report. Methods are documented in PNH methodologies and described here at a high level only.

Damage accumulation and delay band
Multi-impact screening, shown qualitatively: capacity lost over successive impacts, and the delay band compared with the response timeLeft: bars show the capacity a rated barrier line has left after each successive deliberate impact, falling slowly at first and then quickly until it crosses a breach threshold, compared with a flat single-impact view. Right: the delay band, from a conservative bound to a best estimate, on a time axis with two response-time cases: one arriving while the line holds, one arriving after the band. No values. ONE RATING, MANY IMPACTS Full Single-impact view 1st 2nd 3rd 4th 5th 6th Breach threshold Successive deliberate impacts Capacity remaining Delay window DELAY BAND AGAINST RESPONSE TIME Time after the first impact DELAY BAND Conservative bound Best estimate Response A Arrives while the line still holds. Response B Arrives after the band: add delay layers or shorten the response. Schematic only. Not a tested endurance rating. No values shown.
A rating describes one impact; delay screening tracks what follows and compares the delay band with the response time.
VECTOR-D screen, illustrative
Illustrative VECTOR-D screen: impacts along a rated barrier line, damage accumulation and the delay band against response timeIllustrative mockup of the VECTOR-D application on a dark theme with an amber accent: a plan of a barrier line with numbered impact points, a damage-accumulation panel that rises slowly then quickly to a breach band, a delay band with a response-time marker, and a list of vehicle classes checked with illustrative values. Not real output. VECTOR-D Multi-impact screening ILLUSTRATIVE Barrier line, plan 1 2 3 4 5 Damage by post Low High Damage accumulates Breach Impacts Delay band Response time Minutes Car Pickup Medium truck Illustrative mockup of the VECTOR-D interface. Illustrative values, not real output.
Illustrative mockup: impacts along the line, damage accumulation and the delay band against response time.

Talk to PNH About VECTOR-D

Send us the site and the deadline. A short note on the site, what concerns you and when the tender or decision is due is enough to start. We reply within one business day.

  • The siteAn address, a site plan or a few photos.
  • The concernThe threat question, an incident or a client requirement.
  • The criteriaAny standard or client specification that applies.
  • The dateWhen the tender, review or decision is due.

Email [email protected] or call +1-818-253-9557

Thank you. PNH will reply within one business day.