What’s going through the mind of Dublin City Council (DCC) Manager Owen Keegan as he decides what to do about Capel Street and Parliament Street? Capel Street and Parliament Street face each other across Grattan Bridge in Dublin. Capel Street in particular has the indefinable loveliness you sometimes find in a city. It’s enclosed and cosy; the shops are small and quirky; the footpaths are lively.  For all their loveliness, Capel Street and Parliament Street have motor traffic. Most of Capel Street has, mercifully, only one lane of traffic, along with two lanes of parking. Parliament Street is busier, with…