We refer to previous correspondence and would advise that we now received a reply from the Highways Department in respect of the speed checks that they have carried out both on Long causeway near Adel St. John’s School and on Sir George Martin Drive.
The 85%ile referred to below means the maximum speed that 85 % of the vehicles were doing i.e. 15% of drivers were exceeding 29.2mph on Long Causeway and 15% of drivers were exceeding 30.1mph on Sir George Martin Drive
The study was carried out throughout the day, not just at peak periods hence the recorded volumes of traffic included in the table.
The results of the speed surveys on Long Causeway and Sir George Martin Drive were made available this morning. The survey tubes were down from the 14 to 22 September inclusive.
A summary is as below:
| Location | Date | Mean Speed | 85%ile Speed | Weekday two-way volume |
| Long Causeway | September 2011 | 22mph | 29.2mph | 770 vehicles |
| Sir G M Drive | September 2011 | 24mph | 30.1mph | 3200 vehicles |
| Sir G M Drive | September 2001 | 27mph | 33mph | 3300 vehicles |
The Senior Engineer, highways have included results from a September 2001 survey done on Sir George Martin Drive near Tile Lane for comparison. It is apparent that the volume of traffic has remained static, but traffic speeds have reduced by a significant factor.
Should you wish to make any comments please do so through our website or you may wish to contact Cllr Barry Anderson direct.
Thanks
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