AHSRA
Research
Materials

AHS Background of development

"i,c,a" Development of AHS System Functions

Outline of the Primary Requirements of Advanced Cruise-Assist Highway Systems

Report on CHAUFFEUR Study Mission

Report on AVHS Demonstration in Korea and others

Outline of the 2nd International AHS Task Force

Report on the 2nd International AHS Workshop

AHS Requirements
(Phase 0)

Outline of AVG Demo '98
(Holland)

AVG Demo'98 Arena Discussion Presentation

Status and Plans of AHS in Japan

'98 ITS World Congress-Presentation

R&D policy on AHS

Mission & approach of AHSRA

Invitation to participate in the Joint Tests
 
 
The National Trunk Road 11 (or N11) is being constructed as a quick connection between Leiden and Bodegraven and will connect the A4 (Amsterdam - The Hague) and A12 (The Hague - Utrecht) motorways. The stretch between Leiden and Alphen aan den Rijn will be opened for traffic in mid 1999. The entire road should be completed in 2002.
The construction

The construction of the N11 is not simple: because the area is situated near the Old Rhine river, the ground consists of peat and clay. These ‘weak layers’ must consolidate (become firmer) before a road can be built upon them. This will occur using accelerated drainage techniques, in which the water will be drained from the bottom and the ground will sink (’settling’). A sand foundation will subsequently be introduced into the settled bottom, over which the road will run.
 
Before the N11 is opened to traffic in mid 1999, no fewer than eight projects must still be completed. The first one has already begun: the stretch of road from Leiden to Alphen aan den Rijn, including the fly-over which is part of it, should be completed by late May 1998.
 
Specifications for the demo project

The following facilities will be added to the infrastructure at the test site:

  • magnets in the road surface, points of orientation for lanekeeping and automatically changing lanes.

  • transponders in the road surface, necessary for automatic goods transport (ECT) based on the FROG technology and automatic passenger transport (people mover).

  • roadside reflectors, points of orientation for automatically-driven vehicles (Praxitele).

  • beacons for data exchange between the vehicle and the infrastructure (UDC).
The area surrounding the demonstration road will also be set up for the demo project. The design will include a parking space for the demonstration vehicles, and sites for huge demo tents and bleachers for the public.