§ Lord Bradshawasked Her Majesty's Government:
Whether more restrictive standards or rules have been applied to bi-directional working than was the case when the system was installed; if so, which body applied the more restrictive rules and when; and 68WA what consideration was given to possible efficiency losses in terms of train service operating conditions and maintenance productivity. [HL3771]
§ Lord Davies of OldhamNetwork Rail advises that more restrictive standards or rules have not been applied to bi-directional working. However, Network Rail's RIMINI (risk minimisation) system attempts to ensure that Network Rail or other dutyholders have properly planned their maintenance work to limit and protect trackside workers from moving trains using a hierarchy of control measures. Under RIMINI 'green zone' working removes train movements from the track and 'red zone' working allows train movements but provides other control measures for trackside workers.