The provided bar chart depicts percentage of car trips into the city center passed by residents and non-residents. The changes happened in the city centre both affected the quantity of transportation apparently. The number of residents’ car showed a fallen trend in general, while the non-residents’ car showed a rising trend, although it dropped in 2003.
Before 2000 , when parking meters into city centre had not been introduced number of residents cars were stable throughout the period , averaging to 9500 per day , while proportions of non-residents cars were grown from 5000 to 8000 per day. During the time when parking meters opened , the quantity of residents cars decreased sharply , which averaged at 5000 per day and the amount of non-residents cars declined slightly to 7500 per day but climbed back to 8000 per day in 2002.
After Westgate Street and Park Lane had been closed to traffic, it significantly influenced number of non-residents cars , which went down enormously in 2003 but increased from approximately 300 per day to 5000 per day in following 2 years. The transports of residents fell to 4000 per day in 2003 and a amount of them fluctuated around 3500 per day in next few years.