Source-Reduction or Safe-Dissipation Plan¶

An upstream planning artifact — instantiates Migration-Resistant Hazard Control

A plan that attacks the pressure generating a hazard at its source — lowering the demand, load, or incentive that drives it — so there is less hazard to migrate at all, held to a stated tolerance for any residual that remains.

Source-Reduction or Safe-Dissipation Plan is the archetype's upstream move, and the only one aimed at the generating pressure itself rather than its downstream expression. Every other mechanism works on a hazard that already exists — framing it, tracking it, watching it, or rerouting it. This plan asks a different question: what creates the pressure, and can we make less of it? Its defining commitment is to reduce the driver — the demand, load, incentive, or stored energy that generates the hazard — or, where the source cannot be removed, to route it into a genuinely safe dissipation. Because "reduce the source" has no natural stopping point, the plan pins down an explicit tolerance threshold: the residual level at which the source is deemed reduced enough, so the effort is bounded and its success is checkable rather than open-ended. A hazard that is never generated cannot migrate — which is why this is the durable fix and not merely a better-placed barrier.

Example¶

A chemical plant stores a large tank of a toxic intermediate and manages the risk with alarms, bunds, and interlocks; every incident review adds another barrier, and each barrier just moves the failure mode somewhere new. A source-reduction plan applies inherently-safer thinking at the top of the hierarchy of controls — elimination and substitution before mitigation.^[1] It works from a generative hazard-pressure model identifying the stored inventory as the pressure source, and commits to making the intermediate on demand in small quantities, cutting the standing inventory by roughly ninety percent. The plan sets a tolerance threshold for maximum on-site inventory that defines "reduced enough," so the target is explicit rather than aspirational. There is now far less hazard to release, contain, or displace — not a stronger wall around the same tank, but a smaller tank.

How it works¶

Start from what generates the pressure. Work from a model of the actual driver — the demand, load, incentive, or stored energy — rather than the symptom, so the reduction lands on the source and not a proxy.
Reduce or substitute the source. Target that driver for elimination, reduction, or substitution, moving up the control hierarchy from mitigating the hazard to not producing it.
Design safe dissipation for the remainder. Where the source cannot be fully removed, route the residual pressure into a sink that discharges it harmlessly rather than displacing it.
Set a tolerance for residual. Fix an explicit threshold for acceptable remaining pressure, so "enough" is defined in advance and reduction is not declared prematurely — or pursued without end.

Tuning parameters¶

Reduction-vs.-dissipation mix — how much to solve by eliminating the source versus safely bleeding off what remains; the balance between the durable fix and the feasible one.
Tolerance threshold — how much residual is acceptable; tighter is safer and costlier, and the dial that decides when the plan is done.
Source-targeting depth — whether the plan acts on the proximate driver or the root demand or incentive behind it; deeper cuts last longer but reach further into how the system works.
Reversibility and phasing — how fast to cut the source without creating a shortage shock that generates its own new hazard.
Substitution risk budget — how much new, possibly unknown risk a substitute is allowed to introduce before it is disqualified.

When it helps, and when it misleads¶

Its strength is durability: a hazard not generated cannot be displaced, so this is the only mechanism that shrinks the whole migration problem rather than relocating it. When barriers keep winning locally and losing system-wide, source reduction is the move that ends the game instead of playing it better.

Its weaknesses are difficulty and substitution. Source reduction is usually the hardest, slowest option because it touches core demand and economics, and a substitute can quietly import a new hazard — the regrettable-substitution trap, where the replacement is less studied than what it replaced. Its classic misuse is to run backwards: relabel a cheap barrier as "source reduction," or set the tolerance threshold loose enough that trivial cuts clear it. The discipline is to verify that the generating driver actually fell — not merely relocated — and to screen every substitute for the new hazards it brings before crediting the reduction.

How it implements the components¶

Source-Reduction or Safe-Dissipation Plan realizes the upstream side of the archetype — the components that act on generation, not manifestation:

generative_hazard_pressure_model — the plan is built on it and operationalizes it, translating "what creates the pressure" into a concrete source to reduce or substitute.
tolerance_threshold — the explicit residual level that defines "reduced enough," bounding the effort and making its success checkable.

It does not design the downstream absorption redesign (that's Pressure-Absorption Redesign Workshop) or verify the net reduction across boundaries (that's Cross-Boundary Hazard Ledger); it commits the upstream cut those mechanisms complement and confirm.

Instantiates: Migration-Resistant Hazard Control — it is the source-side strategy that leaves less hazard in existence to migrate.
Consumes: Pressure-Absorption Redesign Workshop — whose redesigns often become the concrete source-reduction and safe-dissipation actions this plan commits to.
Sibling mechanisms: Pressure-Absorption Redesign Workshop · Boundary Expansion Review · Cross-Boundary Hazard Ledger · Cross-Jurisdiction Incident Review · Intervention Displacement Stress Test · Migration Sentinel Network · Whole-System Impact Map · System-Wide Net-Risk Dashboard · Before–After–Elsewhere Evaluation · Adaptive Circumvention Red Team · Causal Loop Diagram · Agent-Based Experiment or Simulation · Fault Tree Analysis · Mass Balance · Hazard Analysis

Notes¶

Source reduction and safe dissipation are ordered, not equal: eliminating the generating pressure is the durable fix, and safe dissipation is the fallback for the portion that cannot be eliminated. A plan that reaches for dissipation first — because it is cheaper — is often a barrier in disguise, and the tolerance threshold is what keeps that substitution honest.

References¶

[1] Hierarchy of controls — the safety-engineering ordering that ranks elimination and substitution of a hazard above engineering controls, which rank above administrative controls and protective equipment. Source reduction is this hierarchy's top tier, and the reason a barrier, however strong, is treated as a lower-order response than removing the hazard's source. ↩