Many bacteria have the capability to actively propel themselves on surfaces by extension, surface attachment and retraction of micron-scale filaments known as type IV pili (TFP), this type of motion is called "twitching". Twitching has been primarily studied by single cell tracking using fluorescence microscopy and image analysis. These tools can track bacteria for hours at a time, during which bacteria can explore and begin to colonise new surfaces. In contrast, direct observation if twitching with TFP visible is very challenging even for a few minutes. We use the results of the latest direct observation studies of TFP driven twitching motility to build a model that aims to bridge the gap between our understanding of individual TFP extension/retraction behaviour and the trajectories observed on much longer timescales.