How do these magic boxes work?

They dug the road up, about 2 feet praveen says, and laid a concrete base. Just as it started drying, they started placing the elements. Neighbouring elements are supposed to be held by mates. But from the pics I've seen, there are only one type of mates. Apparently end elements have these pre-tensioning hooks, around which 40T compressive pressure will be applied so that the elements are snug.

How are these elements fastened to the floor? What prevents the elements from moving in the X and Y directions? Any guesses?

Heres something thats totally counterproductive.

For all of you who have travelled on the Bangalore/Mysore road, the Vrishabhavathi canal on the outskirts of Bangalore is a familiar sight. Theres also a water treatment plant that was set up at great cost just before Kengeri.

The railway budget 08-09 is out. The fares are down. Plea for Bangalore-Arsikere-Mangalore is left un-answered, but we have been blessed with a handful of other trains instead. Also featured in the new budget are more half hearted promises on the same old projects that have been on simmer since more than a decade now (be done with the Gulbarga Bidar line already). As far as Bangalore, in and by itself is concerned, the CRS finds no mention in the 08-09 budget. With this two years would have passed in the Comprehensive Traffic and Transport Plan's Phase I(07-12) with no action on the 204 km CRS project.