The majority of new railways are beingbuilt for use with electric traction, with many existing railwaysalso being electrified. Summarise:
(i) The benefits of an electrifiedrailway when compared with conventional (diesel) motive power
(ii) The advantages and disadvantagesof the two different types of electrification system
(iii) The practical applications ofeach type of system. Give reasons for your answer.
(b) Describe some common ways ofstabilising failed soil slopes. Explain your answer using sketchdrawings where appropriate.
(c) Detail and discuss three aspectsof water management and control within railway geotechnics and theimplications of mismanagement.