Urban/Rural

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Table 6: Average Annual Accidents Saved associated with Urban and Rural Schemes. Whole database to 02/04/2001

Location

Number of Schemes

Average Annual Accidents Saved

Urban

1106

1.23

Rural

1203

1.07

The table above indicates how many schemes within the database are either urban or rural. The table is limited to schemes where "after" accident data is available.

The Average Annual Accidents Saved is defined as the average number of accidents per year "before" the scheme was implemented minus the average number of accidents per year "after" the scheme was implemented. The "before" and "after" periods are typically both 3 years long. Therefore, the larger the figure the more effective the scheme.

 
 

Every possible care has been taken to ensure that the information presented on this page is accurate. TRL Limited regret that they cannot accept any responsibility for loss caused by error or omission.

 

Table 7: Treatment types by Location Whole database to 02/04/2001
 

TREATMENT

TYPE

URBAN OR RURAL

NUMBER OF SCHEMES

Average Annual Accidents Saved
TOTAL ACCS BEFORE

TOTAL ACCS AFTER

TOTAL ACCS

CHANGE

%

CHANGE

Cycle Schemes

Combi

5

4.87

150

52

-98

-58.00

Anti-skid surfaces

 

Urban

36

1.05

339

231

-108

-31.80

Rural

4

2.08

40

15

-25

-62.50

Speed cameras

Urban

1

3.55

97

89

-8

-10.69

Red-light cameras

Urban

4

-0.50

49

55

6

12.25

Markings

 

Urban

196

0.83

1721

1208

-513

-29.63

Rural

74

0.88

599

370

-229

-35.38

Chicanes/Narrowings

Urban

18

1.27

189

86

-103

-46.91

Gateways

Urban

3

3.67

48

15

-33

-68.75

Guard-rail and pedestrian barriers

Urban

13

1.76

161

86

-75

-46.16

Rural

3

2.01

49

26

-23

-41.04

Lighting

Urban

44

1.30

608

416

-192

-30.90

Rural

5

0.22

44

38

-6

-7.88

Pedestrian crossings

Urban

70

1.10

808

490

-318

-36.01

Rural

2

1.88

18

3

-15

-83.33

Road humps

Urban

10

2.88

107

12

-95

-88.46

New roundabouts and mini- roundabouts

Urban

56

0.95

526

288

-238

-39.94

Rural

15

2.62

216

45

-171

-76.15

New signals

Urban

26

1.80

323

144

-179

-52.98

Rural

8

1.93

93

20

-73

-75.03

Modifications to  signals

Urban

80

1.28

1130

697

-433

-33.06

Rural

10

1.96

135

66

-69

-47.96

Signing

Urban

222

0.66

1536

1044

-492

-30.71

Rural

136

0.70

879

521

-358

-37.37

Splitter islands

Urban

5

0.73

38

27

-11

-28.95

Yellow bar markings

Urban

2

1.83

15

4

-11

-73.33

Rural

2

1.17

19

12

-7

-36.84

Mass Action Schemes

Urban

40

1.23

644

472

-172

-25.07

Rural

11

3.11

151

50

-101

-67.86

Route Action Schemes

Urban

40

1.56

535

320

-215

-39.78

Rural

15

1.31

128

64

-64

-48.94

Area-wide schemes

Urban

9

2.46

153

81

-72

-45.1

Rural

1

6.67

23

3

-20

-86.96

Speed tables

Rural

1

0.00

1

1

0

0.00

 

The table above presents information for selected types of treatment for both urban and rural settings. The number of schemes refers to the number of schemes that contain the treatment type used. The treatment might be one of many applied at the same scheme. The Average Annual Accidents Saved, Total Accidents and % Change refer to the schemes and not the treatments.

The table is limited to schemes within the database that have been positively identified as either urban or rural. The table is limited to schemes where "after" accident data is available.

Every possible care has been taken to ensure that the information presented on this page is accurate. TRL Limited regret that they cannot accept any responsibility for loss caused by error or omission.

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