▁of ▁the ▁bridge ▁is ▁a ▁large ▁round about ▁adjacent ▁to ▁W and sw orth ▁Town ▁railway ▁station , ▁where ▁Br id g end ▁Road ▁( A 2 1 7 ), ▁York ▁Road ▁( A 3 2 0 5 ), ▁Sw andon ▁Way ▁( A 2 1 7 ) ▁and ▁Tr inity ▁Road ▁( A 2 1 4 ) ▁meet . ▁The ▁round about ▁is ▁a ▁noted ▁example ▁of ▁ 1 9 6 0 s ▁modern ist ▁design , ▁and ▁served ▁as ▁the ▁setting ▁for ▁parts ▁of ▁A ▁C lock work ▁Orange ▁in ▁ 1 9 7 1 . ▁In ▁ 2 0 0 7 ▁appro val ▁was ▁granted ▁ ▁for ▁a ▁series ▁of ▁ ▁glass ▁cone - sh aped ▁" fl ames " ▁designed ▁by ▁architect ▁Steven ▁Len cz ner , ▁which ▁would ▁change ▁colour ▁with ▁the ▁t ides , ▁to ▁be ▁added ▁to ▁the ▁bridge ▁deck . ▁The ▁cost , ▁estimated ▁at ▁£ 8 0 0 , 0 0 0 , ▁would ▁be ▁raised ▁by ▁private ▁spons or ship . ▁The ▁" fl ames " ▁were ▁to ▁be ▁raised ▁above ▁the ▁sight lines ▁of ▁drivers ▁to ▁avoid ▁causing ▁a ▁dist raction . ▁ ▁W and sw orth ▁Bridge ▁now ▁marks ▁the ▁boundary ▁above ▁which ▁a ▁lower ▁speed ▁limit ▁on ▁the ▁Th ames ▁is ▁enfor ced . ▁A ▁ ▁speed ▁limit ▁is ▁now ▁in ▁force ▁down stream ▁from ▁W and sw orth ▁to ▁Margaret ness ▁but ▁because ▁of ▁the ▁number ▁of ▁row ers ▁using ▁the ▁upper ▁reaches ▁of ▁the ▁river , ▁all ▁of