A1Modena - Bologna
construction of lane 4 (32 Km)
|Work total:||€ 178,4 *million|
|Length of intervention:||31,6 Km|
|People involved::||1.000 approximately|
|Noise barriers:||15 Km|
*Total Investment of €189.5 million, €11.1 million of which for the Other Interventions pursuant to the 2008 Convention.
The intervention involved expanding the 32 km stretch between Modena Nord and Bologna, which sees peak traffic of up to 168,000 vehicles per day (including around 48,000 lorries and buses), from 3 to 4 lanes plus a hard shoulder. This stretch is the point of intersection of the two main highways connecting northern (A1 and A22) and southern Italy (A1 and A14).
Autostrade per l'Italia only alerted the local authorities of its local planning choices and interventions in February 2002. The relevant approval phases were immediately implemented, concluding with the Services Conference in November 2002.
The 4th northbound lane was opened to traffic on 23 December 2005, 8 months ahead of schedule.
The 4th lane was fully opened to traffic on 31 March 2006, approximately 5 months ahead of schedule.
The 3 lanes remained open to traffic in each direction throughout the execution of works, with the exception of some necessary resurfacing phases.
The interventions, which were financed and planned by Autostrade per l'Italia, relate to the construction of the Circonvallazione Nord Sud at San Cesario sul Panaro, the expansion of the Tangenziale di Modena and the installation of noise barriers over a 15 km stretch of highway. The interventions have yet to been completed.
|WORK PROGRESS||OPENING TO TRAFFIC|
|Northbound WORK COMPLETED||DECEMBER 2005|
|Southbound WORK COMPLETED||MARCH 2006|
Construction of the 4th lane between Modena and Bologna has considerably reduced travel times and accident rates and a significant reduction in air and noise pollution is envisaged (data collection is underway). The main results recorded one year after opening to traffic are set out below.
- Hours in queue per accident: -70,4%
- "Blocked traffic" hours: -60,2%
- OVERALL ACCIDENT RATE: -24,3%
- MORTALITY RATE: -40,0%
Pollution data is being collected. Improved results are forecast, in line with those of the A1 stretch between Barberino and Firenze Nord and of those recorded for the A4 stretch between Milan and Bergamo.