Engineering Company
Outer East Orbital Road - Milan

Outer East Orbital Road - Milan

The Outer East Orbital Road in Milan (TEM) is one of the most strategically important infrastructures.  It is located in one of Italy’s most focal points for urban and suburban daily traffic.  This new road will connect the A4 Turin-Milan-Venice to the A1 Milan-Bologna, about 32 km in length and 38 km for new traffic, making it the natural access for the new road link Brescia, Bergamo, Milano, known as Bre.Be.Mi.
Thanks to the infrastructural works, TEM includes a reduction in the number of annual travel hours for about 9 million with absorption of over 75000 vehicles daily.  The intervention also features placement along its axis of about 2 million sq m of greenery with a reduction in pollution of 20%.
The motorway features a crossover three-lane section for each direction, with emergency lane connected via nine junctions to the main local and motorway traffic routes, and specifically:

  • Junctions with the motorway network: A1 interconnection, A4 interconnection and Bre.Be.Mi interconnection.
  • Junctions with non-motorway roads: Pessano-Bornago, Gessate, Pozzuolo-Martesana, Liscate, Paullo, Vizzolo Predabissi
  • Junctions linking to normal roads: SP 13 (Monza -Melzo), SP ex SS 11 (Padana Superiore), SP 103 (Cassanese), SP 14 (Rivoltana), SP 415 (Paullese), SS 9 (Emilia).

The sections between “Cassanese” and “Rivoltana”, known as “Arco TEEM”, is the section to be completed first so as to guarantee interconnection with the Bre.Be.Mi within a brief timeframe.
Opengineering Srl has specifically worked on the executive designs for the electrical and special installations on the Arco TEEM section, including pk 7+300 and pk 25+500, for the following areas:


  • Telecommunications systems and networks
  • Video surveillance and traffic monitoring systems
  • Variable message sign system
  • Weather data collection system
  • Vehicle count and classification system
  • SOS system
  • Fog sign system
  • Technical buildings ongoing (shelters, road drainage, vmp)


  • Lighting systems
  • Video surveillance system
  • Fog sign system
  • Road drainage

Station lighting systems include the toll booth plaza, the junctions, parking areas and roads leaving the toll section as far as the first roundabouts onto normal roads.
As far as ongoing systems are concerned, these include video surveillance, weather stations, VMP, SOS and road drainage.  In particular, concerning video surveillance, this system serves to monitor junctions VMP, toll plazas and road drainage.
For the motorway service systems, Opengineering Srl designed energy-saving systems using solar panels, while to light tunnels and for automatic tolls, LED lighting was used.
Two weather stations were envisaged, each controlled by a data collection unit installed in the nearest shelter.  VMPs were envisaged along both carriageways, each comprising 1 alphanumerical panel, 2 symbol panels in full colour, 3 scanners to count and classify transiting vehicles, 1 speed camera with “Tutor” system and 1 “Dome” colour video camera for surveillance.
The SOS system along the road and in laybys includes SOS phones for emergency calls.  These systems use electrical power via photovoltaic sources and dual SIM GSM communication technology.  Each column is made in glass resin, a front panel for the user, electronic equipment, photovoltaic panel on a pole, battery pack and GSM aerial.
A closed loop drainage system has been designed to allow controlled discharge of all water on the road into the natural water network; this connects the drainage system for the section of the road concerned (channels, drains and guttering) with the road drainage point.  The drainage points serve to collect and treat the water from the motorway and therefore, this includes spillages, meaning it has a dual function of retarding and initial sedimentation.
The project includes centralising data, signals and measurements from field apparatus, in the specific room at the toll booths in Pozzuolo Martesana.  This room will contain the FEP and servers that collect, manage and process the data.  Information will then be available on an ethernet network and visible to remote clients.
Supervision and telecontrol for the ring road has been designed to use a Gbit Ethernet trunk network connecting the relevant optical boxes using interconnecting terminal nodes to the nearest motorway tolls on the A1 and A4.  PLC will control the relevant apparatus and data acquisition including acquiring and processing status signals, measurements and alarms from the lighting systems outside of the junctions, at tolls, in laybys and service areas.  These PLCs will interface with the trunking network, transferring data to the nearest node.
A Simulcast Radio Network has been designed to cover the whole TEM section.  The system will be divided across a master control unit and two slave units with aerials able to transmit the signal along the whole section.  Data communication and synchronisation between the units will take place using the available fibre optic network.

opengineering impianti ingegneria


Outer East Orbital Road - Milan


Concessioni Autostradali Lombarde Spa




TEM S.p.A.


Executive Design for Electrical and Special Systems

Task assigned by

Consorzio ARCOTEEM (Impresa Pizzarotti & C. S.p.A., Unieco Soc.Cop., CMB Soc. Coop.)

Importo Impianti

17.451.341,24 €