7/23/2019 electronic engineering ICA 1288

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SOUD1288-A04

 Report ICA Project

T.Littlejohns

0148!!4

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Scen$rio%

&o' $re $ PLC pro(r$))er $n* s+ste) inst$ll$tion en(ineer.

&o'r co)p$n+ h$s ,een contr$cte* to proi*e $'to)$tion or the ne/ orth ro$*,ri*(e in Scotl$n* *'e to open in 2013 to control tr$c 5o/ or *i6erent sit'$tions.

&o' $re to 'se the speci7c$tions ,elo/ $s $ ('i*e to pro*'ce +o'r pro(r$).

Speci7c$tions%

• The ,ri*(e /ill h$e si l$nes9 three o /hich $re or the :orth ,o'n* tr$c he$*in(to/$r* :orth ;'eens,err+ $n* three l$nes So'th9 he$*in( to/$r*s <*in,'r(h.

= D'rin( the )ornin( r'sh perio* 0"%00 > 0?%0 @on*$+ to ri*$+3 o'rl$nes $re re'ire* he$*in( to/$r*s <*in,'r(h. D'rin( eenin( r'sh perio* 1!%0 >1"%0 @on*$+ to ri*$+3 o'r l$nes $re re'ire* to/$r*s :orth ;'eens,err+.

= To $chiee these con*itions t/o centr$l l$nes l$nes $n* 43 )'st proi*eehicle *riers in*ic$tion i$ re* $n* (reen open#close* li(hts to sho/ /hich *irection

the 5o/ o tr$c c$n t$Be. The none ch$n(in( *irection l$nes h$e 7e* (reen l$neopen li(hts /hich $re not incorpor$te* in to the $'to)$tion s+ste).

= To $oi* c$rs ch$n(in( l$nes $n* cr$shin( into onco)in( tr$c l$nes $n* 4 )'st in*ic$te th$t l$nes $re close* in ,oth *irections ! )in'tes ,eore $n* $ter r'sh-ho'r perio*s.

pic 6 lane •

D'rin( hi(h /in*s (reeter th$n !0 @iles per ho'r !.0 olts3 $ /$rnin( si(n is to*ispl$+ i(h /in*s Eri*(e close* to hi(h si*e* ehicles. Fhen /in*s $re (re$terth$n "0 @iles per ho'r ".0 olts3 the /$rnin( si(n is to *ispl$+ i(h Fin*s Eri*(eclose* to $ll ehicles. Eoth )ess$(es sho'l* not ,e *ispl$+e* $t the s$)e ti)e.

I the $ir te)per$t're *rops ,elo/ 2.0 *e(ree Celsi's 2 olt3 or )ore th$n 10secon*s $ /$rnin( si(n is to *ispl$+ D$n(er o ice on Eri*(e.

I the n'),er o ehicles on the ,ri*(e ecee*s 10 in either *irection lo/ n'),er or the p'rpose o the $ssi(n)ent3 $n $),er /$rnin( li(ht one or e$ch *irection3 is toco)e on /hich in*ic$tes to *riers to Slo/ *o/n Con(estion on the Eri*(e.

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