ABSTRACT

Immediately after the accident, an OVV research team conducted an on-site survey. In the technical study, three different scenarios were extensively studied:

1. Exceeding operational parameters. The electronic components and the data car-

rier were checked, as well as what is known as the crane’s electronic compatibility. That kind of compatibility involves the possible influence of electromagnetic fields, such as power supply,

1 INTRODUCTION

Tower cranes are complex and impressive installations. The increased technical quality of the cranes is the main reason why scenarios like ‘crane instability’, ‘jib instability’ and ‘hoisting equipment instability’ contribute little to accidents. Nowadays ‘load instability’ is still the most dominant accident scenario in crane accidents (Beaver et al., 2006; Paas and Swuste, 2006; Tam and Fung, 2011). Tower cranes are therefore a critical component in a series of elements that make construction sites inherently dangerous (Parfitt, 2009; Sertyesilik et al., 2010). Oddly, scientific literature devotes relatively little attention to analysing the causes of crane accidents and considering how they could be prevented (Swuste, 2005; Shapira and Lyachin, 2009).