R7 · Building circulation

Doors, lifts and building circulation.

Who controls the doors and lifts?

Research release BTC-RESEARCH-2026-10-17.1 · Prepared 17 October 2026 · Project applicability unresolved

Proposed decision guidance for architects and the customers who commission their projects. Site experiments remain unexecuted.

All twelve decisions ↗

The architect’s task.

Check the actual interfaces and control rights; compare shared circulation, retrofit and dedicated equipment.

The commissioning customer’s responsibility.

Fund integration, maintenance and access responsibilities, including a workable supplier exit.

RESEARCH FINDING

What the evidence supports.

A single-hospital goods-workflow study and a historical interface specification describe door and lift tasks. They do not establish capacity, shaft requirements or investment value for another building.

The connection from a study to this decision is an analyst interpretation. Study conditions, methods, funding and limitations are available in the approved research library.

COUNTEREVIDENCE & DISCONFIRMATION

What could change the decision.

Shared or conventional circulation meets the brief at lower full burden, or dedicated equipment creates an unacceptable dependency.

This is a contrary case to test. The linked claim cards distinguish observed contrary findings from proposed project tests.

REMAINING QUESTIONS

What the project still needs to establish.

  • Equipment and permitted interfaces; adopted versions and alteration review; vertical demand; passenger and worker effects.

Before making the commitment

Actual vertical demand, passenger/service interactions, integration interfaces, drawings and separable lifecycle costs.

FOLLOW THE CONNECTION

Research, clauses and project facts.

DecisionResearch claimRelevant clauseExact source location

A relevant clause may depend on jurisdiction, service type, funding, adopted edition and the work being proposed. A research finding does not establish legal applicability.

The approved library shows examined provisions and analyst connections separately from standards records that have only been screened as candidates.

Trace the evidence for R7 ↗

How this page fits the research.

Possibility Atlas references: AT-02, AT-08. Synthesis themes: I02, I07.

These identifiers connect the desk research. They do not indicate field validation, an agreed project brief or a compliance determination. This web guidance does not revise the existing book editions.