The stopping distance will be doubled (x2) when the roads are wet and multiplied by ten (x 10 times) when the roads are Icy and snowy.<\/p>\n\n\n\n
Below is a chart showing a system for working out the overall stopping distance in feet (there are about 3.25 feet to a meter).<\/p>\n\n\n\n
Example: 30mph x 2 \u00bd = 75ft<\/p>\n\n\n\n
Thinking distance in feet is the same as the speed you are travelling at.<\/p>\n\n\n\n
Example: 30mph = 30ft thinking distance.<\/p>\n\n\n\n
To calculate the braking distance in feet just deduct the thinking distances from the overall stopping distance.<\/p>\n\n\n\n
Example: 75ft \u2013 30ft = 45ft.<\/p>\n\n\n\n
Calculation for stopping distance is in feet<\/p>\n\n\n\n
MPH Thinking distance + Braking = Overall stopping distance = MPH x? <\/p>\n\n\n\n
20 20 + 20 = 40 = 20 x 2<\/p>\n\n\n\n
30 30 + 45 = 75 = 30 x 2 \u00bd<\/p>\n\n\n\n
40 40 + 80 = 120 = 40 x 3<\/p>\n\n\n\n
50 50 + 125 = 175 = 50 x 3 \u00bd<\/p>\n\n\n\n
60 60 + 180 = 240 = 60 X 4<\/p>\n\n\n\n
70 70 + 245 = 315 = 70 x 4 \u00bd<\/p>\n\n\n\n
Separation Distances<\/p>\n\n\n\n
A reasonable rule to apply with good dry roads conditions is a gap of 1 metre per MPH of speed.<\/p>\n\n\n\n
\u00a0Example: 45 MPH = 45 metre gap (147 feet).<\/p>\n\n\n\n
To judge this gap a useful technique is the \u2018two second rule\u2019. When the vehicle in front passes an object, say to yourself \u2013 \u2018only a fool brakes the two second rule\u2019 or one Mississippi two Mississippi\u2019 if you reach the same object before you\u2019ve finished saying it then you are too close.<\/p>\n\n\n\n
If a vehicle travelling behind you has a gap of only 1 second, then you will need to increase the gap in front of you to 3 seconds.<\/p>\n","protected":false},"excerpt":{"rendered":"
The stopping distance will be doubled (x2) when the roads are wet and multiplied by ten (x 10 times) when the roads are Icy and snowy. Below is a chart showing a system for working out the overall stopping distance in feet (there are about 3.25 feet to a meter). Example: 30mph x 2 \u00bd […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-98","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/98","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=98"}],"version-history":[{"count":5,"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/98\/revisions"}],"predecessor-version":[{"id":118,"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=\/wp\/v2\/pages\/98\/revisions\/118"}],"wp:attachment":[{"href":"https:\/\/ken-neal.co.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}