a safe way in which you ride your bike in the city
cycle lane
an area of grass apart from recreational purposes
green spaces
buildings in a very bad condition
run-down/dilapitated/ramshackle
the buying or selling drugs
drug trafficking
Type of pollution characterised by potentially damaging sound
noise pollution
a situation in which there is too much traffic and movement is difficult
congestion
criminal behaviour of young people
juvenile delinquency