3.5 SUMMARY OF RISK ANALYSES
It has been found from the risk analysis that when dealing with temporary and demountable
systems, it requires extra effort to establish the same level of safety as occurs with permanent
protection systems. As a result, permanent protection systems set the benchmark for safety.
The main difference is the added series of operational activities that need to be carried out
successfully to ensure a safe closure of the system. More extensive failure analysis of
temporary and demountable flood protection systems can be found in TAW (1997) and TAW
(2000).
Aspects such as warning systems, operational procedures, training and regular emergency
exercises play a vital role in this regard. When thorough consideration is given to these
matters, temporary and demountable flood protection systems can be safe alternatives where
the use of permanent systems are not possible.