[TCUG] Re: Closely Associated Secondary Signals
- From: "Wallis, Ian" <Ian.Wallis@xxxxxxxxxxxx>
- To: <tcug@xxxxxxxxxxxxx>
- Date: Wed, 27 Sep 2006 11:37:48 +0100
*** Before reading or acting on this e-mail, or opening any attachment, ple=
ase read Derby City Council's disclaimer and confidentiality statement at t=
he end of this e-mail ***=0D=0A=0D=0A=0D=0AIt depends on the layout of the =
junction. Obviously we use them with RTIGAs but also where there is an exit=
crossing as part of the junction (don't want traffic stopping at the secon=
dary) or where the secondary can't be installed within the field of view eg=
some roundabouts. In practise I estimate we probably use them around 50% o=
f the time.=0D=0A=0D=0AIan Wallis=0D=0ADerby City Council=0D=0A=0D=0A=0D=0A=
-----Original Message-----=0D=0AFrom: tcug-bounce@xxxxxxxxxxxxx [mailto:tcu=
g-bounce@xxxxxxxxxxxxx]On=0D=0ABehalf Of Williams, Geoff=0D=0ASent: 27 Sept=
ember 2006 11:29=0D=0ATo: 'tcug@xxxxxxxxxxxxx'=0D=0ASubject: [TCUG] Re: Clo=
sely Associated Secondary Signals=0D=0A=0D=0A=0D=0ATest=0D=0A=0D=0A=0D=0A=0D=
=0A-----Original Message-----=0D=0AFrom: Fleckney, Kevan [mailto:Kevan.Flec=
kney@xxxxxxxxxxxxx]=0D=0ASent: 27 September 2006 10:57=0D=0ATo: tcug@freeli=
sts.org=0D=0ASubject: [TCUG] Re: Closely Associated Secondary Signals=0D=0A=0D=
=0A=0D=0APlease read the Council's email disclaimer notification which is l=
ocated at=0D=0Athe end of the email message.=0D=0A=0D=0A=0D=0AI always use =
far sided secondaries except where one cannot physically be=0D=0Aprovided o=
r where there is an opposing right turn IGA=0D=0A=0D=0AKevan Fleckney=0D=0A=0D=
=0A-----Original Message-----=0D=0AFrom: tcug-bounce@xxxxxxxxxxxxx [mailto:=
tcug-bounce@xxxxxxxxxxxxx] On=0D=0ABehalf Of Andrew Ashton=0D=0ASent: 27 Se=
ptember 2006 10:36=0D=0ATo: tcug@xxxxxxxxxxxxx=0D=0ASubject: [TCUG] Closely=
Associated Secondary Signals=0D=0A=0D=0A=0D=0AHi All,=0D=0A=0D=0AI've been=
asked by our senior management to gauge how many authorities=0D=0Ause =3D =
'closely associated secondary signals', as follows:=0D=0A=0D=0A1. as standa=
rd on all sites;=0D=0A2. only when circumstances dictate (i.e.. right turn =
accident issues,=0D=0Aimpra=3D cticable to use far-sided secondaries);=0D=0A=0D=
=0ATraffic Advisory Leaflet 1/06 - General Principles of Traffic Control by=0D=
=0Ali=3D ght Signals Part 1 of 4 states:=0D=0A=0D=0A"Signal heads beyond th=
e junction are known as secondary signals. The=0D=0Adispl=3D ays must have =
the same information as the primary and may have=0D=0Aadditional i=3D nform=
ation, which must not conflict with that shown on the=0D=0Aprimary. In cert=
=3D ain circumstances it may be undesirable, or=0D=0Aimpracticable, to posi=
tion the =3D secondary beyond the junction. On these=0D=0Aoccasions the sec=
ondary may be on t=3D he entry side of the junction,=0D=0Abeyond the stopli=
ne and primary positions an=3D d preferably on the=0D=0Aoffside. This is kn=
own as a closely associated secondar=3D y."=0D=0A=0D=0AI assume from the ab=
ove paragraph new designs shall always incorporate=0D=0Afar-=3D sided secon=
daries with CASS only being used in certain=0D=0Acircumstances.=0D=0A=0D=0A=
I would appreciate your thoughts and
comments.=0D=0A=0D=0ARegards,=3D20=0D=0A=0D=
=0AAndy Ashton=3D20=0D=0ABlackpool Council =3D20=0D=0A=0D=0A=0D=0AEmail Dis=
claimer is:=3D20 http://www.blackpool.gov.uk/EmailDisclaimer/=0D=0AThis mes=
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