Rolling blockade (human AI)

The rolling blockade, is an event where human beings, either physically themselves, with shopping trolleys, or vehicles, perform a slow moving blockade of thorough-fare, usually by walking side-by-side, and derives it's name from the police tactic of a 'rolling blockade', where a group of cars organise themselves to block another into a rolling stop.

This habit is classically seen in the elderly with shopping trolleys.

Behaviour
In the environment of outdoors travel, a rolling blockade regularly involves two or more people standing side-by-side. Classic signs of an outdoors rolling blockade is when the pedestrian moves very slowly, or their counterparts are unwilling to move out of the way of clearly two-way pedestrian thorough-fare.

Unlike conventional travelling in a line styles, individuals appear to be oblivious or maliciously intending to unnecessarily hog broad swathes of pavement, alleys, and narrow routes which are difficult to cross. It's recommended defensive item positioning or ramming behaviour be utilised when traffic is contrary, that is to say, the rolling blockade traverses in the opposite direction, heading towards you, and alternate routes utilised when stuck behind a rolling blockade heading the same way.

In the environment of stores, behaviour of side-by-side trolleys is often irksome and impassible. Classic signs are both members are elderly and inconsiderate to other oncoming or outgoing traffic. Individuals are advised to utilise alternate aisles for thorough-fare.

Related
See also:

Walking bulldozer (human AI).

Zombie (human AI).