need YoUr help  

Try this. You may find the...
Try this. You may find the topic you are looking for or useful info.
http://www.designdictionary.co.uk/english.htm

Largest producer
Largest producer of street funiture in the UK is possibly Glasdon
http://www.glasdon.com/home.aspx

Also Design Council
This is the official UK design site. I know that there is a lot about bus design, so I think there should be something about bus stop design as well. The website is huge, so it's not easy to find its topics, but I know that Design Council deals a lot with public transports, so I think it's worth a try.
http://www.design-council.org.uk/

SYPTE - bus shelter
Got it! Have a look. I think this is a great help to find out about bus stop design.
http://www.design-council.org.uk/webdav/servlet/XRM?Page/@id=6048&Session/@id=D_YgR9QxK1RX35e3zqq2pP&Document/@id=2136