Slow vehicles blocking the street

There are four young men using the left lane of the Globe Cinema Roundabout/ Muranga Road/ city centre with their manpowered vehicles. The first vehicle is packed with every different kind of garbage such as cardboard, plastic bags etc. One guy is pulling the vehicle upfront while another is pushing from behind in addition. The second vehicle is ten steps behind the other and packed with different sacks. There is only few traffic heading outside the centre.