Has Boris said how this £5B will be spent, who will actually benefit from the cash. Most of the schools and hospitals and in fact most government investment these days goes down the PPP route. Like my old school for instance, it was handed over to a PPP firm. A 1970s school was knocked down and replaced by a brand new school, which was basically free for the council as it was funded from the PPP, the catch being that the council now pays rent for the next 30 years. What happens after the 30 years is anybodys guess.
It was actually john major that started the PFI scheme but wasn't really much interest from investors. So when we got the red tories in 1997, blair/brown changed it to PPP and they were pumping out schools and hospitals all over the country. Basically privatisation by stealth, and who is going to argue against getting a brand new local hospital or your kids getting a flashy new school. But some of these schemes are going to mature soon, so be interesting to see how if anything is mentioned about how the rents are going to sky rocket once the 30 year deals expire. The very nature of the PPP deals was that they had a high level of confidentiality to incourage investors to participate.
I was initially pleased to hear about this money for investment as we need to reverse decades of under funding in infrastructure, not sure if this announcement is just stating again pledges already made during the election campaign so not actually any new money

Unfortunately it looks like a fair chunk is just actually patching work rather than decent new infrastructure, projects in the £5bn investment plan include:
£1.5bn for hospital maintenance, eradicating mental health dormitories, enabling hospital building and improving A&E capacity
£100m for 29 road network projects including bridge repairs in Sandwell and improving the A15 in the Humber region
£900m for "shovel ready" local projects in England this year and in 2021
£500,000 - £1m for each area in the towns fund to spend on improvements to parks, high street and transport
Over £1bn to fund a schools building project, as announced on Monday
£83m for maintenance of prisons and youth offender facilities, and £60m for temporary prison places.