With a population of 500,000 we'd need to be spending £17.5m per annum to match the Dutch, £9m per annum to match these London proposals.
Actually we spend £1.5m per annum, so we're only managing about 15% of London levels of investment. That said, the council has committed to raise funding by an extra 1% a year, so we will only need to wait 30 years before we're matching Boris in real terms.
I'm hopeful (but not realistically expecting) something like this for the new Leith Walk. Note how it copes nicely with the London Rd roundabout equivalent...