The permanent Way Company is a global player in the construction and mainten - ance of railway infrastructure - lines , signalling and communications systems. The work relies on the formation of teams to carry out projects and these are drawn from different divivsions of the company . The divisions of the firm are based aronud the different relevant specialisms, mechanical , electrical, electronics and signalling,construction and surveying. Within each of the different divisions of the firm there are different specialisms - for instance, designers, cost engineers, marketing engin- eers and IT specialists. Most project involve Working across several divisions , often drawn from geographically diverse locations.