Roddy Graham, commercial director, Leasedrive, and chairman, ICFM

Is spending £42.6 billion on HS2 the best use of resources at a time when the road network is crumbling away and the rail network itself urgently needs modernisation of its lines and signalling infrastructure?

I don’t think so and that’s assuming the whole project – the first phase to Birmingham is due for completion in 2026 and the second to Manchester and Leeds in 2033 – is done on time and within budget.

Maybe if Lord Coe was in charge we might have more confidence, but even though Sir David Higgins, Network Rail boss and forthcoming chairman of the project, served on the Olympic Delivery Authority I doubt it.

And even he admits he doesn’t know whether it is realistic!

The argument is that HS2 will increase capacity in the south, connectivity in the north and regenerate the economy.

But at what cost? And how much over budget? The Commons Treasury Select Committee is not convinced by the cost-benefit analysis and considers it should be delayed until the Treasury has conducted a full review.

Already the budget has increased by £10bn and new high-speed trains at £7.5bn will take the whole project over £50bn.

What bid do I have that the final bill will be closer to £100bn given successive governments’ records for overspend? The Channel Tunnel project was 80% over budget!

Rail travel to Birmingham, Manchester and Leeds is fast enough. Not so to Scotland or the west.

And, while the south east seems reasonably well served by rail networks, this is not the case in the north.

Centre for Cities research indicates that upgrading the lines between Bradford and Manchester and improving the trans-Pennine route would deliver hundreds of millions of pounds of economic benefits to the area around Leeds alone.

Meanwhile, the Asphalt Industry Alliance estimates the cost to councils of bringing our roads up to good condition is now £10.5bn, a fifth of the current cost of HS2.

What we need is more investment in our existing rail network, road network, in public transport and cycle routes.

We need to keep UK PLC on the move, not waste billions in the name of some national flag-waving exercise.