What the accident rate was on trunk roads in (a) 2008, (b) 2009 and (c) 2010 and is in 2011, broken down by (i) single and (ii) dual carria…

The accident data for the period 2008-10 is provided in the following table. Transport Scotland analyses the safety performance of the trunk road network using a database of injury accidents compiled by Scotland’s Police forces. This is the most reliable and consistent evidenced data available and is collated and analysed on an annual basis for each full calendar year. No data is yet available for 2011.
A1 Trunk Road: Personal Injury Accident and Three Year Accident Rate, in Comparison with the Trunk Road Network

2008 Accident Numbers
2009 Accident Numbers
2010 Accident Numbers
Three Year Total Accident Numbers
Three Year Average Accident Rate per 100 million veh. km
Dual
Single
Dual
Single
Dual
Single
Dual
Single
Dual
Single
Scottish Trunk Road
499
1125
487
1101
459
946
1445
3172
7.4
19
Scottish Trunk Road (Fatal)
13
39
11
43
14
40
38
122
0.2
0.7
A1 Trunk Road
26
17
25
17
27
13
78
47
7.35
17.6
A1 Trunk Road (Fatal)
1
0
0
0
0
3
1
3
0.09
1.12
A1 Dunbar to Border
2
12
7
17
3
13
12
42
10.15
15.74
A1 Dunbar to Border (Fatal)
0
0
0
0
0
3
0
3
0
1.12
The rates that have been provided are based on 2009 annual average daily traffic flows and the last three full years’ accident statistics. This is the normal practice when providing accident rates across the trunk road network to ensure consistent approach when reporting on accident rates.
The figures quoted may differ slightly from those published elsewhere because they were extracted on a different date and the database may have changed between the two dates, for example due to late returns or corrections to earlier returns. The rates are calculated using sample annual average daily traffic flows recorded in 2009.