ITS on Autostrada dei Fiori A10

Luca Studer / 09 May 2017 13:51

ITS Domain(s):
Traffic management & control
Scale:
  • International
  • National
  • Regional

Description

The Autostrada dei Fiori implemented several ITS along the whole motorway in order to improve both safety and traffic management in general.
This implementation is the only cross-system to include many transports-telematics related aspects. It is therefore very interesting thanks to the extension and synergy achieved by a joint management of different technological systems.

Objectives of the project

To reach the maximum road user safety target, AdF persecuted and still persecute the following strategies:

  • fast incident and traffic jam detection;
  • traffic data and weather data collection;
  • (pre-trip and on-trip) road user information broadcast;
  • coordination with other traffic handling actors (Road Police, other Italian and French motorway operators, CCISS, mass-media, etc.).

During last years in connection with bursting technology evolution the Company promoted a series of investments aiming to set new special plants at the disposal of the infrastructure operational management.

Results/Lessons Learnt

Autostrada dei Fiori SpA (AdF) is the company that operates the A10 motorway between Savona and the French border, belonging to E80 (Roma – Marseille – La Coruña) motorway itinerary, a route of primary commercial and tourist importance.

The motorway stretch spans 113,3 km, is made of nr.90 viaducts and nr.67 couples of tunnels, 62 of which measure more than 150 m in length and equipped with lighting plant with strength circuitry at the beginning. Tunnels longer than 1.050 m are also equipped with forced ventilation system. The motorway stretch has a maximum outdoor slope of 4%, of 2.5% inside tunnels and is characterized by the absence of emergency lane.

A damage or wrecked vehicle along a Ligurian motorway by the way represents an heavier traffic nuisance than along other motorway stretches, due to the large number of tunnels and viaducts and emergency lane missing, though of difficult implementation since the described territory orography.

Objectives

To reach the maximum road user safety target, AdF persecuted and still persecute the following strategies:

  • fast incident and traffic jam detection;
  • traffic data and weather data collection;
  • (pre-trip and on-trip) road user information broadcast;
  • coordination with other traffic handling actors (Road Police, other Italian and French motorway operators, CCISS, mass-media, etc.).

During last years in connection with bursting technology evolution the Company promoted a series of investments aiming to set new special plants at the disposal of the infrastructure operational management.

Success story description

Safety

The selected indicators showed a reduction in the number of accidents per vehicle - kilometre between 1996 – 2003 and a significant decrease in their seriousness both in terms of casualties   every 100 accidents and in terms of casualties per vehicle - kilometre.

Year

Accidents per million vehicle-km

Fatal accidents /Total accidents

Injured per million vehicle-km

Casualties per million vehicle-km

Death rate (casualties every 100 accidents)

1996

0,57

1,58%

0,28

0,013

2,26

1997

0,57

1,08%

0,34

0,006

1,08

1998

0,41

1,61%

0,23

0,007

1,84

1999

0,43

1,26%

0,20

0,006

1,46

2000

0,39

1,32%

0,22

0,005

1,32

2001

0,37

1,39%

0,22

0,008

2,08

2002

0,38

1,05%

0,29

0,007

1,89

2003

0,33

0,71%

0,20

0,002

0,71

Furthermore, the most satisfying results were given by comparing the value of indicators on the AdF with those recorded on Italian motorways in the same reference periods. In particular, the percentage change in the number of accidents per vehicle – kilometre, of casualties and injured per vehicle - kilometre between 1996 and 2003. We can therefore see a national tendency to improve motorway safety, but a better performance of the AdF especially in reducing the number of accidents per vehicle – kilometre and the number of casualties per vehicle - kilometre.

Years of change

Percentage change of accidents per vehicle - km

Percentage change of casualties per vehicle - km

Percentage change of injured per vehicle - km

National average

ADF

National average

ADF

National average

ADF

1997 - 1996

0,00%

0,05%

0,98%

-52,04%

4,17%

22,45%

1998 - 1997

-1,72%

-28,55%

-2,91%

21,15%

16,00%

-34,12%

1999 - 1998

3,51%

4,99%

-1,00%

-16,40%

-3,45%

-9,21%

2000 - 1999

-5,08%

-7,79%

-15,15%

-16,97%

-3,57%

7,87%

2001 - 2000

0,00%

-6,90%

-2,38%

46,75%

-3,70%

0,52%

2002 - 2001

-1,79%

5,03%

1,22%

-4,46%

0,00%

30,91%

2003 - 2002

-12,73%

-12,99%

-14,46%

-67,51%

-11,54%

-31,86%

2003 - 1996

-17,24%

-41,11%

-30,39%

-81,63%

-4,17%

-29,16%

               


Effectiveness

The AdF showed an increase in traffic volumes higher than the average increase recorded on all Italian motorways.

Years of change

% change  vehicle - km

National trend

% change  vehicle - km AdF

Change in ADF value with respect to the national average

1997 - 1996

3,95%

4,24%

0,30%

1998 - 1997

4,41%

32,07%

27,66%

1999 - 1998

3,25%

4,66%

1,41%

2000 - 1999

3,45%

3,23%

-0,22%

2001 - 2000

3,78%

2,21%

-1,56%

2002 - 2001

2,85%

4,67%

1,82%

2003 - 2002

2,94%

2,61%

-0,33%

2003 - 1996

27,36%

63,28%

35,92

With the increase in traffic there is also a small but significant increase in the average speed. This allows to conclude that the motorway was able to contain traffic flows without reducing its average performance.

Average speed per day (km/h)

Average on all sections

Year

Light vehicles

Heavy vehicles

1999

108,01

108,47

2000

110,11

111,59

2001

105,64

106,59

2002

104,88

109,71

2003

97,97

110,46

2004

110,18

109,98

Users’ acceptance

Results emerging from the number of visits to web pages prove a good acceptance of pre – trip information on the part of users.

The most visited pages concern traffic information: the number of visits to these pages went from 1.000 visits per month in January 2001 to over 6.000 visits per month to pages with real-time cameras in May 2004 and about 5.000 visits to pages with traffic information in real time in the same month.

Conclusions

In Table the indicators of the Autofiori Motorway are summarised. 

Table – Indicators summary of the Autofiori Motorway.

Objective

Sub- Objective

Indicator

Statistical basis

Result expected before the implementation (qualitative)

Result surveyed after the implementation (qualitative)

Result surveyed after the implementation (quantitative)

Status of achievement of the aim

Safety

seriousness of accidents

(change)

fatal accidents / total accidents

years from 1996 to 2003

decrease

strong decrease

between 1996 and 2003

-57%

very good

death rate

(trend)

number of casualties on 100 accidents

years from 1996 to 2003

decrease

strong decrease

year 1996 à 2,26

year 2003 à 0,71

very good

accidents frequency as compared with traffic

(trend)

accidents per million vehicle – km

years from 1996 to 2003

decrease

decrease

year 1996 à 0,57

year 2003 à 0,33

good

casualties per million vehicle – km

years from 1996 to 2003

decrease

strong decrease

year 1996 à 0,013

year 2003 à 0,002

very good

injured per million vehicle – km

years from 1996 to 2003

decrease

decrease

year 1996 à 0,28

year 2003 à 0,20

fairly good

accidents frequency as compared with traffic

(comparison with the national average)

accidents per vehicle – km

years from 1996 to 2003

decrease

higher decrease than the national average

between 1996 and 2003

national average à -17,24%

ADF à -41,11%

good

casualties per vehicle – km

years from 1996 to 2003

decrease

higher decrease than the national average

between 1996 and 2003

national average à -30,39%

ADF à -81,63%

very good

injured per vehicle – km

years from 1996 to 2003

decrease

higher decrease than the national average

between 1996 and 2003

national average à -4,17%

ADF à -29,16%

good

Efficiency / Economy

traffic volumes per year (trend)

million of vehicle - km

years from 1996 to 2003

increase

increase

year 1996 à 777,8

year 2003 à 1.270

good

traffic volumes per year (comparison with national average)

vehicle - km

years from 1996 to 2003

increase

increase

between 1996 and 2003

national average +27,36%

ADF  +63,28%

good

traffic volumes per month

vehicle - km per month/ total vehicle – km per year

years from 1996 to 2003

decrease in traffic peaks during the summer

decrease in traffic peaks in July and August

July 1996 à 11,13%

July 2003 à 10,76%

August 1996 à 13,26%

August 2003 à 12,08%

good

Environment

N/A

---

---

no impact expected

---

---

---

Accessibility

increase in the share of local traffic (percentage change)

Average distance covered per month

[average kms covered]

years from 1996 to 2003

decrease in average distance covered

decrease

between 1996 and 2003

-2,22%

of average kms covered except from July and August

fairly good

Integration

N/A

---

---

no impact expected

---

---

---

Impact on users

appeal of information services to users

(trend)

number of visits to the web site

from January 2001 to May 2004

increase

strong increase especially during the summer

January 2001 à 2.200

August 2001à 3.875

August 2002 à 5.750

August 2003 à 6.500

June 2004 à 7.500

fairly good

appeal of infomobility services to users

(trend)

number of visits to the pages on traffic information

from January 2001 to May 2004

increase

strong increase especially during the summer

January 2001 à 1.000

August 2001à 3.250

August 2002 à 8.000

August 2003 à 10.000

June 2004 à4.750

excellent

Status
Completed
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Safety Traffic data traffic management
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