Contents

Contents..................................................................................................................... 5

Who is this guide for?................................................................................................. 11

What is this guide for?................................................................................................ 11

How to use this guide? ............................................................................................... 11

1. General framework ............................................................................................ 13

2. The contract ........................................................................................................ 16

3. Stake analysis: determine .................................................................................. 17

When should an stake analysis be carried out? .................................................... 17

In sum, an stake analysis should be carried out: .................................................. 17

4. Diagnosis and actions guidelines: understand ................................................. 18

When should a diagnosis be carried out? ............................................................. 18

5. Study and implementation of actions: act........................................................ 19

6. Follow-up and assessment: assess ..................................................................... 20

Some specific scenarios........................................................................................ 20

1. Overview of the stake analysis .......................................................................... 22

Definitions ............................................................................................................ 22

The different stages of the stake analysis ............................................................. 22 Data....................................................................................................................... 24

Accident data.............................................................................................................. 24

Additional data with respect to accident data ............................................................ 24

Tools ..................................................................................................................... 25

2. Accident research evaluation of existing situation.................................... 26

Purpose: ................................................................................................................ 26

Content: ................................................................................................................ 26

Implementation (#3):......................................................................................... 26

Precautions: .......................................................................................................... 26

3. Analysis of evaluation and in-depth study of stakes ....................................... 28

Purpose: ................................................................................................................ 28

Content: ................................................................................................................ 28

Precautions: .......................................................................................................... 28 Implementation:.................................................................................................... 28

Thematic analysis ....................................................................................................... 30

Chronological analysis............................................................................................... 30

Spatial analysis .......................................................................................................... 30

Example of in-depth study of analysis of accidents against stationary obstacles in the open country........................................................................................................................31

4. Priorization of stakes ......................................................................................... 33

Purpose: ................................................................................................................ 33 Content: ................................................................................................................ 33 Implementation:.................................................................................................... 33

Precautions: .......................................................................................................... 33

Quick reference 1 How to handle the stake analysis contract?......................... 37

1. Preliminary principles for contract formulation ............................................... 37

2. Items for drafting specifications ....................................................................... 37

Context ....................................................................................................................... 37

Purpose of study ......................................................................................................... 38

Parties involved (or partners) .................................................................................... 38

Content of study.......................................................................................................... 38

Study overview............................................................................................................ 38

Meetings ..................................................................................................................... 39

Items to be provided by the sponsor of the study or to be prepared by the engineering firm.................................................................................................................................... 39

Deadlines.................................................................................................................... 39

Study total and payment terms ................................................................................... 39

Termination of contract.............................................................................................. 39

Intellectual property ................................................................................................... 39

Quick reference 2 Accident file for stake analysis .............................................. 40

1. Up to December 2003, two BAAC file formats ("BAAC 93") ........................... 40

2. Since January 2004, "BAAC 2002" ................................................................... 40

3. BAAC file description........................................................................................ 41

4. The accident file has limitations....................................................................... 43

5. Amending the accident file............................................................................... 43

6. Other accident data ........................................................................................... 43

ATB reports ................................................................................................................ 43

Police reports ............................................................................................................. 44

REAGIR investigations and "understand in order to act"............................................ 44

Link and consistency between data and tools............................................................. 44

Quick reference 3 Some tips for carrying out an evaluation.............................. 45

1. How to start?..................................................................................................... 45

2. Questions to ask to avoid pitfalls.................................................................... 45

3. Without Concerto?...................................................Erreur ! Signet non défini.

Quick reference 4 Road network sectioning ........................................................ 46

1. Why sectioning? ............................................................................................... 46

2. How to section? ................................................................................................ 46

3. Precautions ....................................................................................................... 46

4. With Concerto .................................................................................................. 46

Quick reference 5 References................................................................................ 48

1. Why compare?.................................................................................................. 48

2. Possible references ........................................................................................... 48

3. Choice of reference........................................................................................... 48

4. Sources of information ..................................................................................... 48

5. Specific case of junctions: predictive models .................................................. 49

6. Rate and density references (calculated on 1998-2000)................................... 49

Quick reference 6 Road safety indicators ............................................................ 51

1. Unprocessed indicators..................................................................................... 51

2. Local Accident Research Indicators (IAL)........................................................ 51

3. Severity indicators ............................................................................................ 52

Severity .......................................................................................................................52

4. Risk indicators (rate, density and ZAAC) .......................................................... 53

Accident density.......................................................................................................... 53

Accident rate .............................................................................................................. 53

Which risk indicator should be selected? ................................................................... 53

ZAACs (Accident Accumulation Areas) ....................................................................... 54

5. Typological indicators ...................................................................................... 55

Calculation method: ................................................................................................... 55

Examples of typologies:.............................................................................................. 55

6. Economic indicators ......................................................................................... 55

Overall cost of personal injury accidents calculated on the basis of victims............. 55

Cost of personal injury accidents weighted with severity – PRAS calculation ........... 56

Cost savings - method 1.............................................................................................. 56

Cost savings - method 2.............................................................................................. 56

Which cost should be used?........................................................................................ 57

Quick reference 7 Local statistical analyses ........................................................ 58

1. Thematic analysis ............................................................................................. 59

3. Chronological analysis ..................................................................................... 59

2. Risk level analysis ............................................................................................ 60

Combined rate and density analysis ..................................................................... 60

Quick reference 8 Multi-criteria analysis for priorization stakes ................ 62

Cost for each theme (fictitious example).............................................................. 62

Quick reference 9 Some tips for mapping............................................................ 64

1. Memo guide...................................................................................................... 65

Publishing format ....................................................................................................... 65

Theme ......................................................................................................................... 65

Map background ........................................................................................................ 65

The three representation modes ................................................................................. 65

Point thematic analysis .............................................................................................. 65

Linear thematic analysis ............................................................................................ 65

Zone thematic analysis ............................................................................................... 65

Category thematic analysis ........................................................................................ 65

Choice of colors ......................................................................................................... 66

Chronological maps ................................................................................................... 66

Map harmonization .................................................................................................... 66

2. Further mapping details .................................................................................... 66

"Size" visual variable ................................................................................................. 66

"Color" visual variable .............................................................................................. 67

Place name rules ........................................................................................................ 67

Formatting rules......................................................................................................... 67

3. Example of map (CETE Mediterranean) ........................................................... 68

Quick reference 10 Definitions.............................................................................. 69

Road traffic personal injury accident ................................................................... 69 Adhonis................................................................................................................. 69

Concerto ............................................................................................................... 69

Accident density (personal injury accidents or serious accidents or fatal accidents) 69 Implication............................................................................................................ 70

Severity of a set of accidents ................................................................................ 70

Metods .................................................................................................................. 70

Urban environment (or built-up area)................................................................... 70

Morbidity .............................................................................................................. 71

Journey ................................................................................................................. 71

Open country ........................................................................................................ 71

Primary safety....................................................................................................... 71

Secondary safety................................................................................................... 71

Tertiary safety....................................................................................................... 71

Accident rate (personal injury accidents or serious accidents or fatal accidents)

71 Visage ................................................................................................................... 71

Case study 1 Determination of locations liable to accidents............................... 73

1. Case application context................................................................................... 73

2. Case specificities .............................................................................................. 73

Which data are necessary?......................................................................................... 73

Are there any particularly suitable indicators? ......................................................... 73

How far should the in-depth study go?....................................................................... 73

Priorization ........................................................................Erreur ! Signet non défini.

3. Practical implementation .................................................................................. 73

Preliminary stage ....................................................................................................... 73

Evaluations................................................................................................................. 73

Evaluation analysis .................................................................................................... 74

Priorization of stakes.................................................................................................. 74

Case study 2 Study on a specific theme ................................................................ 76

1. Case application context................................................................................... 76

2. Case specificities .............................................................................................. 76

Which data are necessary?......................................................................................... 76

Are there any particularly suitable indicators? ......................................................... 76

How far should the in-depth study go?....................................................................... 76

Priorization ........................................................................Erreur ! Signet non défini.

3. Practical implementation .................................................................................. 76

Preliminary stage ....................................................................................................... 76

Evaluation .................................................................................................................. 76

Evaluation analysis .................................................................................................... 77

4. Example ............................................................................................................ 78

Study excerpt .............................................................................................................. 78

Excerpt of study .......................................................................................................... 79

Excerpt of study .......................................................................................................... 81

Excerpt of study .......................................................................................................... 82

Case study 3 Stake analysis prior to a route diagnosis.................................... 83

1. Case application context................................................................................... 83

2. Specificities of this case ................................................................................... 83

Which data are necessary?......................................................................................... 83

Are there any particularly suitable indicators? ......................................................... 83

How far should the in-depth study go?....................................................................... 83

Priorization ........................................................................Erreur ! Signet non défini.

3. Practical implementation .................................................................................. 83

Preliminary stage ....................................................................................................... 83

Evaluation .................................................................................................................. 84

Evaluation analysis .................................................................................................... 84

4. Example ............................................................................................................ 84

Excerpt of study .......................................................................................................... 86

Case study 4 Observatory type study ................................................................... 87

1. Case application context................................................................................... 87

2. Specificities of this case ................................................................................... 87

Which data are necessary?......................................................................................... 87

Are some indicators more suitable than others? ........................................................ 87

How far should the in-depth study go?....................................................................... 87

And priorization? ....................................................................................................... 87

3. Practical implementation .................................................................................. 88

4. Example ............................................................................................................ 88

Excerpt of stake analysis prior to Haute Savoie DGO................................................ 89

Excerpt on "night-time accidents" section. ................................................................ 90

Excerpt of summary.................................................................................................... 93

Case study 5 DGO stake analysis ........................................................................... 94

1. Case application context................................................................................... 94

2. Specificities of this case ................................................................................... 94

Which data are necessary?......................................................................................... 94

Are there any particularly suitable indicators? ......................................................... 94

How far should the in-depth study go?....................................................................... 94

Priorization ........................................................................Erreur ! Signet non défini.

3. Practical implementation (technical part only)................................................. 95

Preliminary stage ....................................................................................................... 95

Evaluation .................................................................................................................. 95

Analysis ...................................................................................................................... 95

4. Example ............................................................................................................ 97

Contents of DGO stake analysis final report for the Landes district .......................... 97

Excerpt of study .......................................................................................................... 98

Excerpt of study .......................................................................................................... 99

Excerpt of study ........................................................................................................ 100

Excerpt of study ........................................................................................................ 101

Excerpt of study ........................................................................................................ 102

Excerpt of study ........................................................................................................ 103

Excerpt of study ........................................................................................................ 105

Excerpt of study ........................................................................................................ 106

Case study 6 SURE stake analysis (priorization of routes) ....................... 107

1. Case application context................................................................................. 107

2. SURE process................................................................................................... 107

Study ......................................................................................................................... 107

Main bibliography................................................................................................ 110

For more information .......................................................................................... 111

Examples of studies .............................................................................................. 111

Internet / Intranet sites ........................................................................................ 112

Internet sites........................................................................................................ 112

Sites for i2 network ............................................................................................ 112