The Welsh Government has made a set of regulations (Health Protection (Coronavirus Restrictions) (Wales) Regulations 2020) restricting activities. To accompany this they have produced a set of guidance this afternoon (link attached): https://gov.wales/taking-all-reasonable-measures-maintain-physical-distancing-workplace (there is a link within the attachment to the actual guidance).
Having briefly reviewed the links there is little mention of the construction industry, which is the closest reference to street works – construction sites are listed within the General Principles. There is reference to ‘employers who have people on site’. In all case the key points are around ‘reasonable measures’.
One statement that might be applicable within the section ‘Where reasonable measures are not possible’ is reference to ‘tasks that require two or more people to undertake them safely’.