Taking the side streets to avoid the main road is called &quot;rat-running&quot; in Britain.<p>Raising&#x2F;lowering bollards are expensive, and tend only to be used where some vehicles (typically buses) are permitted but others aren&#x27;t. Tailgating doesn&#x27;t work [1]!<p>The more common solution is fixed bollards, gates or similar, configured so cyclists can pass, which means they can perhaps make a route using only the quiet streets.<p>[1] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=PRCA8MvedIo" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=PRCA8MvedIo</a> (before anyone defends the tailgaters, the signs are exceptionally clear.)