MetroCount Survey Results

The results of the MetroCount survey carried out in March 2017 were presented at the Area Board Meeting at County Hall on the 1st of June 2017. Martin Aldam, Senior Transport Planner, presented the survey results, including those for Leap Gate.

The total number of HGVs and LGVs using Leap Gate during the MetroCount survey:

Leap Gate  A               Leap Gate B

LGV = 1,742                 LGV = 1,792
HGV = 13                     HGV = 11

Criteria for the MetroCount survey:

The 85th percentile is the speed at which 85% of the traffic is travelling at or below.

The thresholds for interventions in a 30mph speed limit are:

30 to 35mph     = No Further Action (NFA)
35.1 to 42 mph = Eligible for Community SpeedWatch
Over 42 mph    = Subject to Police enforcement

Community SpeedWatch does not operate in any speed limit above 40mph.

                                                Average  85th %ILE   Speed Limit   Action 
Leap Gate B3106 (A)
Northbound                                29.2          33.5                 30          CSW     
Southbound                                31.0          37.7

Speed (MPH)             Total Number of Vehicles
    
0-20                            1111
21-35                          47493
36-50                          5784
51+                             36
                                   54424

The survey was carried out over several days, and the results confirmed that residents were right to be concerned about the speed and volume of traffic along Leap Gate.

We have been working very hard campaigning for over 2 years, and with the help of Councillor Oldrieve, we will continue to do so for as long as it takes.

However, Highways at Wiltshire Council failed to carry out a MetroCount survey, as requested by Councillor Oldrieve, in the 30mph stretch between the roundabout/pedestrian crossing and the 30/50mph interface, where most speeding and accidents occur.

The Community SpeedWatch threshold was met at Leap Gate (Southbound at Soprano Way junction), which means that the 30mph stretch of Leap Gate is eligible for the Community SpeedWatch scheme.

Fact, if someone is hit by a car at:

20 mph they are 10% more likely to be killed
30 mph they are 50% more likely to be killed
40 mph they are 90% more likely to be killed

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