Carolyn Debenham commented on Get your info 2017-10-06 11:18:16 +0100Hello! I can’t find any information about the effect of suction from high sided vehicles when traffic is over 20mph rather than under. Suction is an unpleasant problem in our village with busy A road through it, narrow footpaths and many HGVs going through. Can anyone point me in the direction of any info here? Got loads of other great data from the site, thanks.