Difference between revisions of "Category:Subseries DSIR 12"

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See [[Note on DSIR series]] for explanation of the classification system here.
See [[Note on DSIR series]] for explanation of the classification system here.


==DSIR 12/180==
===DSIR 12/180===


:'''[[DSIR 12/180a]]''' Experimental low level lighting of motorways (1959)
:'''[[DSIR 12/180a]]''' Experimental low level lighting of motorways (1959)
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:'''[[DSIR 12/180d]]''' Direction signs in motorways (1959)
:'''[[DSIR 12/180d]]''' Direction signs in motorways (1959)


==DSIR 12/181==
===DSIR 12/181===


:'''[[DSIR 12/181a]]''' Effect of installing signals at the Western Avenue/Greenford Road roundabout (1960)
:'''[[DSIR 12/181a]]''' Effect of installing signals at the Western Avenue/Greenford Road roundabout (1960)


:'''[[DSIR 12/181b]]''' Effect of installing signals on approaches to roundabout at New York Road Circus, Leeds (1960)
:'''[[DSIR 12/181b]]''' Effect of installing signals on approaches to roundabout at New York Road Circus, Leeds (1960)

Latest revision as of 20:32, 28 November 2009

Department of Scientific and Industrial Research: Road Research Board

See Note on DSIR series for explanation of the classification system here.

DSIR 12/180

DSIR 12/180a Experimental low level lighting of motorways (1959)
DSIR 12/180b Experimental edge markings for roads with flush verges (1959)
DSIR 12/180c "Yield" signs (1959)
DSIR 12/180d Direction signs in motorways (1959)

DSIR 12/181

DSIR 12/181a Effect of installing signals at the Western Avenue/Greenford Road roundabout (1960)
DSIR 12/181b Effect of installing signals on approaches to roundabout at New York Road Circus, Leeds (1960)

Pages in category "Subseries DSIR 12"

The following 6 pages are in this category, out of 6 total.