“…Van der Elzen discusses whether existing methods like the Tripod Delta as described by Hudson et al (1994), are covering all basic risk factors and as such represent an 'all covering method'. Gort et al (2004) propose a mix of methods of which Tripod Delta is one which investigates the team spirit of a crew, OHSAS 18001 is another one looking whether procedures and a safety management system are present, while finally a Safety Culture Quick Scan examines management attitude to safety and how this percolates down in the organization. Others prefer to survey the more temporal 'safety climate' representing the attitude towards safety by management (the supervisor) as perceived by the worker, as more indicative, see e.g.…”