Roadcraft does not yet have anything about flow but any well practised advanced driver will be able to deploy systematic driving in such a way as to minimise the amount of braking and reactionary behaviours because they have planned their next 2-5 hazards. By using good observation and expert control of their vehicle you should be able to both 'make progress' and be a positive influence on other motorists by allowing them to 'flow' as well. Our road system is increasingly busy and this isn't going to improve, when you take a 'Big Picture' view of things you can assist in the flow of an entire section of roadway.
‘Diagrams and text from Roadcraft – The Police Rider’s Handbook, published 2013 by The Stationery Office (TSO) © Police Foundation copyright 2013. Reproduced with permission from the Police Foundation.’