Increasing population
Population currently at 477,000, forecast to rise to 543,325 by 2030
Conservation prevents the widening of roads or knocking down buildings
The centre of Edinburgh is a UNESCO world heritage site
Bottlenecks on key routes into the CBD
Commuters from the lothians, borders and fife can create congestion on routes such as the A703 from Peebles.
New shopping centres
The Gyle/Straiton
Tourism
The EIF, fringe festival and the tattoo.