There is a big step forward in plans for a major gas pipeline backed by Europe.Transit agreements have been signed today in Ankara by the architects of what has become known as the Nabucco pipeline. Signing up to the deal are Turkey, Bulgaria, Romania, Hungary and Austria. Germany is also part of the consortium working on the pipeline, but it does not have a transit role. The countries have agreed to a series of legally binding conditions. The 3,300 kilometre pipeline will begin in the Turkish city of Erzurum.