On 23/5/23 09:50, David McLoughlin wrote:
> Photo 525 shows similar work on a junction in Praha, but trams were

> diverted around the section. It was interesting seeing a team of men

> digging out the old tracks by hand and shovel, not with a machine.


They appear to be working near a set of points - there may be buried
signal/control cables around the points, hence the hand excavation to
avoid damaging those cables.