✳ Airways for Impact
Evidence pathways · System Public Graph data
Better buildings · healthier lives

Where could healthier spaces start?

Explore the connections between building interventions, health and wider benefits—and where the evidence needs attention.

Compare possible interventions and follow the pathways that matter to your community.
01 / Explore interventions · All settings

Choose an intervention to explore

Open a card to see its connections, or add more than one to a package.

How to read the cardsProblem evidence = studies linking the exposure the intervention reduces to healthFix evidence = studies testing the intervention itselfStrong = 20+ problem studies (or 5+ fix trials) and most significant · Moderate = 5+ studies, ≥40% significant · Limited = fewer · associations, not proof of cause

Built on the System Public Graph v2.1 and cited reports. No combined effects of packages have been assessed.

02 / Overview · all interventions

How much evidence sits behind each link?

Pick an intervention. Lines run to its co-benefits and costs (above) and to health (below); line width is the number of studies. Select any line to see the findings.

Line colour Health link (studies) Possible benefit Mixed / conditional Potential harm / makes worse Not assessed Evidence volume: W1 = 1–4 · W2 = 5–19 · W3 = 20+ studies · width is linear in studies, not effect size Bars: blue = problem evidence (studies linking the exposure to health) · black = fix evidence (studies testing the intervention)

Intervention systems map · illustrative

Example only — not evidence or a ranking. The connections, colours and weights are illustrative placeholders, repeated across maps. They do not represent assessed causal effects or investment recommendations.
01 / Trace the system

Follow the connections

Select a numbered line, or choose its corresponding link below the map, to inspect the connection.

Benefit Potential harm Mixed Not assessedThicker = stronger reviewed evidence, not larger effect

Arrows show a proposed direction of influence; increases or decreases are not yet assessed. Unconnected outcomes remain open questions.

03 / From evidence to action

Where should we focus?

These are decision prompts, not results. A strong link is not automatically the greatest leverage point.

Potential leverage

Review health burden, effect size, distribution and feasibility alongside confidence before prioritising action.

Weak or missing links

Investigate unassessed links, conflicting findings and groups underrepresented in the evidence.

Investment & trade-offs

Consider costs, implementation, equity and harms; distinguish contextual NHS costs from proven savings.