Improving Air Quality

Iain Stewart Excerpts

Thursday 28th June 2018 Commons Chamber

[Iain Stewart (Milton Keynes South) (Con)]

It is a pleasure to contribute to this very welcome debate, and it was a great pleasure, too, to serve on the Joint Committee. My first point is about that Joint Committee: having inquiries that more than one Select Committee can participate in is a very welcome development. I urge the House to consider how more such inquiries might be facilitated. Earlier today we had a statement from the Health and Social Care Committee and the Communities and Local Government Committee on long-term care. Bringing expertise from a range of perspectives is very helpful and I would like to see more of it.

There are five brief points I would like to contribute to the debate. The first picks up on a point made by my hon. Friend the Member for Tiverton and Honiton (Neil Parish), which is that too often we have silo thinking in government and a lack of effective cross-departmental co-operation. It goes further than just policymaking, however. There has to be a change in culture in how schemes are budgeted for and evaluated for cost-effectiveness. Increasingly, we find that where expenditure might lie with one Department the benefit will accrue somewhere else, so it will not show up in the usual Treasury reporting of finances. For example, funding for a transport scheme would come from the Department for Transport or local government, but the Department of Health and Social Care might see the benefits because fewer people suffer conditions relating to poor air quality. I therefore urge the Government to start thinking a little bit more about that.

The second issue I would like to raise—I beg the indulgence of the House, but it is quite a techy point—is the Oslo effect. When we look at particle emissions from cars, too often we focus only on tail-pipe emissions. The Oslo effect occurs from invisible and odourless small particles going into the atmosphere as a result of brakes being applied, rubber tyres wearing down on the road, and even bitumen particles being thrown up when tyres hit the road. It may not sound a lot from any one individual car, but the cumulative effect, particularly in areas with high-sided buildings, can be substantial. Some studies show that only one third of particle emissions from cars actually comes from the tail pipe, with two thirds coming from those other sources.

This is a little bit counter-intuitive and I am certainly not arguing against the uptake of low-emission vehicles and moving to hybrid and electric cars, but like for like, those vehicles are heavier than their petrol or diesel equivalents. Therefore, the Oslo effect is exacerbated by those heavier cars. Manufacturers need to be encouraged to look at making cars as light as possible and to research other substances that could be used in place of rubber for brake pads and tyres. It also affects buses, which are by nature much heavier vehicles. I encourage Members—I declare an interest as chair of the all-party group on trams and light rail—not just to think immediately of buses as the best local transport solution. Trams may have a higher capital investment to begin with, but the savings they might deliver will accrue over a longer period of time. I also chair the all-party group on the Oxford-Milton Keynes-Cambridge corridor, which will be developing many new settlements over the next few decades. Each of those new settlements will have to develop local transport plans. This would be an ideal place to start looking at new and effective public transport solutions that are, as other Members have suggested, not car-centric, and at making it easier for people to walk or cycle to their destinations.

That leads me on to my third point, which is on cycling. I too have started cycling in London, from here to my home in London which happily resides in the constituency of the hon. Member for Poplar and Limehouse (Jim Fitzpatrick). I too cycle past the monitor that shows how many bikes go past each day. I absolutely encourage people to take up more cycling, but as the right hon. Member for Exeter (Mr Bradshaw) mentioned one of the biggest changes will come from electric bikes. There is a problem here. In my constituency in Milton Keynes, we have a network called redways, which are segregated from the main roads, for cyclists and pedestrians. At the moment, it is illegal to use an electric bike on them. I am trying to get to the bottom of whether this is a local authority decision or a more national matter.

[Dr Whitford]

As an electric bike owner—I tried not to take offence at the comments of the right hon. Member for Exeter (Mr Bradshaw) about electric bike owners—I know that there are two classes of electric bikes, one of which is allowed in cycle lanes and one of which is not. I wonder whether it is that difference about which the hon. Gentleman is hearing.

[Iain Stewart]

I am very grateful for that information. I was not aware that there were two classes of electric bikes, and I will certainly look into it. I imagine there is a great deal of confusion among people who own or might want to purchase an electric bike, and a bit more clarity might be helpful.

My fourth point concerns the use of new technology. We must always be looking into how new technology might be deployed to reduce transport emissions. I certainly do not want to reopen the debate about Heathrow, but time constraints prevented me from expanding on this subject in my speech on Monday. New technologies are available that will reduce emissions from the existing airport. One example is the TaxiBot, an autonomous electric vehicle which will take planes from the stand to the runway without the need to switch on the aircraft engines.

[Ruth Cadbury (Brentford and Isleworth) (Lab)]

I too am aware of various initiatives, but would the hon. Gentleman care to tell us to what extent and by what proportion such initiatives will reduce air pollution, and by when they will be implemented? I do not remember seeing that in the documents from the Department for Transport.

[Iain Stewart]

I am afraid that I do not have the figures relating to the actual effect, but I do know that the technology to which I have just referred is already being implemented at Frankfurt airport. It is a proven technology, and it does make a difference. I appreciate that it may not deal with the overall, wider issues relating to air quality and airports, but that single step will help.

My final point will be very brief. The diesel scrappage scheme has been mentioned today. I urge caution on that, because it can be a very blunt instrument and can affect less affluent people disproportionately. The Committees received evidence from the British Vehicle Rental and Leasing Association, which has suggested, for instance, that drivers of polluting diesel vehicles should be offered mobility credits for public transport or electric bikes, rather than a cash sum or a trade-in sum.

Let me end by thanking the Committee’s staff for making our inquiry so enjoyable and thought-provoking. I look forward to the Government’s taking up many of our recommendations.