Question 1

How does TekRisk compare to RISKCURVES?

Accepted Answer

Both offer QRA with F-N curves and risk contours. RISKCURVES, maintained by Gexcon, is a Windows desktop application; TekRisk runs in the browser, in English and Spanish, and includes fault and event trees. Its QRA features are on the Pro plan at US$59.99/month.

Question 2

What QRA capabilities does TekRisk offer?

Accepted Answer

F-N curves, individual risk contours and average individual risk following CCPS methods, societal risk against tolerability criteria (HSE, RIVM, HIPAP 4 and others), receivers and probits. Wind direction can be applied with a 16-sector wind rose.

Question 3

Is TekRisk based on Yellow Book methodology?

Accepted Answer

For outflow and fires, yes: they follow the TNO Yellow Book (CPR 14E) and reproduce its worked examples. Dense gas dispersion uses SLAB (LLNL) and risk calculations follow CCPS. Each model page in the documentation cites its sources.

Question 4

Can I transition from RISKCURVES to TekRisk?

Accepted Answer

Yes. The QRA concepts are the same, but RISKCURVES projects cannot be imported: scenarios are recreated by entering the same inputs.

Feature	TekRisk	RISKCURVES	Advantage
Cloud-Based	Included	Not included	TekRisk Advantage
No Installation Required	Included	Not included	TekRisk Advantage
Multi-Language Support	Included	Not included	TekRisk Advantage
QRA Capabilities	Included	Included	Equal
F-N Curves	Included	Included	Equal
Individual Risk	Included	Included	Equal
Social Risk	Included	Included	Equal
Risk Contours	Included	Included	Equal
Interactive Maps	Included	Included	Equal
Pricing	Pro US$59.99/mo	US$5,000+/yr	TekRisk Advantage
Free Tier Available	Included	Not included	TekRisk Advantage
TNO Yellow Book Based	Included	Included	Equal

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