Questionnaire survey sheets for light rail construction are composed of six(6) major subject such as general information of responders, personal protective equipment(PPE), understanding level of safety situation at construction sites, safety training situation conditions, safety facilities at construction sites, satisfaction level of working environment. Those sheets are distributed to the workers who are working at light rail construction sites directly in order to collect those sheets, more easily. The collections of those are analyzed by the statistical techniques such as frequency, cross, correlation analysis and the analysis of variance. It is found out that age-fitting safety training should be made to get better training efficiency from the analysis of variance related to establishing better communications between workers there at construction sites.