An experiment on fire fighting activity using portable fire pumps was carried out for 41 subject teams of variable characteristics. It was conducted according to an activity scenario for a team consists of three community residents. The scenario involves six sequential processes starting with detection of fire and ending up with discharge of water. Amount of time required for the operation of portable fire pump was measured for each of the process. The obtained distributions of the required times were approximated with lognormal curves providing expressions necessary for the evaluation of community-scale capability of fire prevention. It is also shown that the occurrence of erroneous operations was not that dependent on the training experience of the residents in the past. The rate of water thrown into a model fire room through a window was measured for 84 residents. It was found that the rates were almost proportional to the direct distance between the target window and the nozzle head.
