Trains have always been used as an analogy for Northern Ireland's long drawn-out political process. In 1997, Tony Blair warned Sinn Féin that the "settlement train" was leaving and would not wait.
Former DUP leader Ian Paisley, now Lord Bannside, told his party members in 2005 that the "democracy train" was leaving, with or without them.
There have been delays, faulty signalling and many long halts leading to the restoration of devolution in May 2007.
The Assembly was suspended in February 2000 over the IRA's failure to decommission its weapons, and the issue of arms led to further suspensions of devolution up until October 2002, when allegations of an IRA spy-ring at Stormont again led to direct rule being imposed for a further four years.
Nascent power-sharing has been criticised for being heavy on debate and light on law-making, even by some of those Assembly members sitting on the chamber's blue benches.
can legislate on all matters transferred to it from Westminster, which includes everything except defence, foreign policy, and raising taxes.
The executive, in effect the government of Northern Ireland, is made up of Assembly members using a mechanism created by a 19th Century Belgian lawyer, Victor
for sharing out ministries between parties.
Like a box of Belgian chocolates, the largest parties get to choose the tastiest portfolios.
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