Final Report Lot 9: Public street lighting - Amper

times the height. In category S, the limitations on glare are lower and commonly lamps with
smaller wattages are used so the risk of glare also decreases; implying that the luminaires can be
more extensive and the spacing can be higher. In residential areas there is mostly a limitation
on the pole height, but with a higher SHR the spacing can be adjusted to reasonable values.
These values retrieved from the enquiry are only based on a few countries and on the present
local practices.
Table 31: Pole distance: Conclusions from the Expert inquiry
Cat. F Cat. M cat. S
Pole distance (m) 35-80 25-50 15-50
Typical assumed (m) 45 30 25
3.3.8 Total EU-25 road network: 1990-2005
The local road network is, as described in 2.2, one of our key parameters for the calculation of
the installed stock of street lighting in Europe. Figures for the road length of different types of
roads 46 were obtained from Eurostat 47 and are presented in Table 162-Table 165, in ANNEX N.
Note: For an estimation of the figures for the missing years an extrapolation was made based on
the average growth rate of the preceding/coming years. These are shown in italic format.
The Economic Commission for Europe of the United Nations publishes yearly its “Annual
bulletin of transport statistics for Europe and North-America”. The figures (for the year 1990,
2001 and 2002) listed in their most recent (2005) edition were used as a benchmark for the
Eurostat road infrastructure data and overall seem to correspond well for the 4 distinguished
road categories (Motorways, State roads, Provincial roads, and Communal roads).
Another source for information on the lengths of different road types in the different EU-25
Member States is “European Road Statistics 2005” of the European Road Federation 48 . A
check of the ERF reported figures for the year 2002 49 with the figures from Eurostat gave rise to
(large) discrepancies between these two sources. In compiling this year’s data, and those in
previous years, ERF’s researchers have found that gathering reliable data on Europe’s road
sector is no simple task. Once again, ERF is struck by the differences between the data found
here and the more limited data found in official sources such as the European Commission,
which consistently underestimate the size and importance of the road sector. “It has always
been a firmly held belief of ERF that available transport data neither reflect economic and
social realities nor enable adequate and informed decision-making." (ERF, 2005).
IRF World Road Statistics claims to be the only global compilation of road and vehicle
statistics. “It is based on data compiled from official sources within national statistics offices
and national road administrations in more than 185 countries. It also benefits from increased
46
Motorways, State roads, Provincial roads, Communal roads
47
http://epp.eurostat.ec.europa.eu/portal/page?_pageid=0,1136228,0_45572945&_dad=portal&_schema=PORT
AL
48
http://www.erf.be/images/stat/ERF_stats.pdf
49
Reported sources are: European Commission and IRF (International Road Federation)
103