The operational height, 4.65 m, of the Dublin Port tunnel will be greater than the operational height applicable in most other EU member states.
It was, and continues to be, the view of Dublin City Council and the National Roads Authority that the tunnel will facilitate almost all of the truck traffic currently using Dublin Port. Two vehicle height surveys of HGVs using Dublin Port have been carried out — one by the Dublin Port Company and one by the National Institute of Transport Logistics. Their results are summarised as follows:
|
Dublin Port Company Survey
|
National Institute of Transport Logistics Survey
|
Period of study
|
Ongoing (data Oct 02 to July 03)
|
One week in May 2003
|
Measurement location
|
Tolka Quay Road Exit
|
All entry and exit points except Tolka Quay Road Exit
|
Number of vehicles surveyed
|
785,580
|
Approx 53,000
|
Number over 4.65m (total)
|
4725
|
920
|
Number over 4.65m (percentage)
|
0.60%
|
1.74%
|
Number over 4.65m (average per day)
|
24
|
137
|
It will be clear from the foregoing that a very limited proportion of HGVs using the port will not be able to use the Dublin Port tunnel.