I was really excited to see Auckland Transport’s proposal to extend rail electrification from Papakura to Pukekohe. With a whole heap of growth proposed for the southern-most parts of Auckland it seemed pretty insane to cut electrification off at Papakura. Furthermore, if wake up to the reality that running diesel shuttle trains for less than 100 passengers a day between Waitakere and Swanson is absolutely insane, electrification to Pukekohe means that we can completely do away with diesel trains from the Auckland rail network. That’s likely to have some significant cost savings in terms of no longer needing a diesel train maintenance depot.

While the preferred “Option C”, which includes electrification plus two new stations at Drury and Paerata, has a fairly decent benefit-cost ratio of 2.1, I wonder whether the business case has actually significantly under-estimated the potential patronage of the line because possible other stations haven’t been considered. I guess to be fair, the area in question is at the moment predominantly rural – as shown in the map below (proposed line for electrification in red, existing stations in blue and proposed stations in purple):

Drury and Paerata are existing, if relatively small, towns and have the potential to be good park and ride locations (particularly Drury) – so the stations make sense and I can see why they would be built in the near future. However, in the longer run as this area develops it would seem obvious to include some further stations. Remember the options for growth that are being looked at for this part of Auckland (with the blue dots once again indicating existing stations and the purple dots indicating proposed stations): 

Depending on the final options chosen for where urbanisation will and will not happen, you could have up to three additional stations servicing this area – while still keeping a fairly decent spacing between the different stations. Here are some seemingly logical locations where they could go:

Perhaps the only station that’s pushing a little close to the others is the Opaheke one between Papakura and Drury, but all the others generally have at least 2-3 kilometres between station – actually greater than the gaps between many stations on Auckland’s current rail network. This is shown below:

Obviously there’s always a balance to be found with the number of stations you have – because each station slows down the train for people not getting on and off. However the sheer scale of growth proposed for this area means that the balance might be tipped in favour of more stations rather than less. This from the Council’s report into this southern growth area:The report seems to indicate that most of this development is unlikely to happen until post 2020, so the additional stations may not be needed for quite some time. However, as electrification to Pukekohe’s justification is based on a 30 year timeframe it really should take into account the possibility of at least 1-2 of these extra stations happening. With a city the size of Tauranga likely to be constructed around this railway line during the next 30 or so years, plus Pukekohe to grow significantly as well, I’d say that perhaps the need for electrification is even more compelling than Auckland Transport’s analysis so far suggests.

Put it this way, we’d be absolutely insane to develop that area without electrification happening.

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  1. Great posting except this rather poorly thought out line “Furthermore, if wake up to the reality that running diesel shuttle trains for less than 100 passengers a day between Waitakere and Swanson is absolutely insane”.

    I thought by now you have realised this service needs to be extended to Huapai? There’s been plenty of debate on here and the CBT forum and it still shows that a service extension is needed west, and needed now. You want alot more than 100 passengers to one station (Waitakere)? Provide what is needed.

    1. I don’t think that extending electrification or even diesel shuttles to Huapai will magically make enough people use the train to justify an existence. There are only about 7000 people in the whole Huapai/Kumeu/Riverhead/Waimauku area and I doubt many would be travelling to places along the rail line with the exception of the CBD which would be much faster on a bus with the upgrades that are planned for SH16 anyway. Better to stop the services at Swanson and put the money saved into a much improved bus service until such time as major development in the area occurs.

  2. Its worth noting that its unlikely that Karaka will get developed- there are serious land stablity issues there, making it unsuitable for urban development. Its likely that its on the map more to demonstrate that all possible options have been evaluated.

  3. Electrification and more regular services to Pukekohe make perfect sense to me. If you compare it to Wellington where regular trains go to Paraparaumu and they recently extended it to Waikanae, the Pukekohe electrification would serve an equal or greater population as Kapiti coast I’d say.

  4. ‘The potential work force will come from across the Auckland region, but is expected to be primarily focused on Papakura, Franklin and neighbouring Manukau. These workers can get to the area by different modes of transport, with improved roading connections, public transport (including via train to Drury), and extended cycleway connections. The mode of transport used depends on where workers live and how soon public transport options are provided.’ From the Drury South Industrial Project Website. So is there actually a station planned for Drury?

    I think it makes a lot of sense to electrify to Pukekohe. Also, to safeguard station sites and ensure development centres around these sites. That way, in a few decades, the new suburbs between Pukekohe and Papakura will be centred around stations, which should ensure high PT usage. Ideally, major developments (like shopping centres) could then be adjoined to the stations.

  5. Spijkenisse town (pop 75,000 area 30km2) at end of Rotterdam metro line has 3 station 1.2 km apart. Maybe instead of having 3 station spread out between Drury and Pukekohe. They could be concentrated in Pukekohe allowing the train to run at speed between Pukekohe and Drury.

    1. How would that help if development ISN’T all concentrated in Pukekohe? The 800m rule applies (stations are only really effective if there is lots of residential within a circle of 800m of their loction).

    2. Don’t forget to mention here that the whole area is incredibly industrial with worldwide headquarters for shell in pernis and unilever in Vlaardingen. you can’t really compare areas around the worlds biggest harbour with pukekohe..

    3. Don’t forget to mention here that the whole area is incredibly industrial with worldwide headquarters for shell in pernis and unilever in Vlaardingen. you can’t compare areas around the worlds biggest harbour with pukekohe..

  6. Anon, the problem with Tuakau is that I think it’s in the Waikato District Council area, not in the Auckland Council area, So unless the WDC are going to fund/partially fund an extension (and also the operating costs of services going from/to there) there it won’t happen. I agree that it would be good to extend it to Tuakau as well.

      1. If the WDC did help fund it then they would be one step closer to a potential Hamilton metro service. The govt really needs to step up with the money to electrify to Te Rapa if it is to be successful I think. But, it’s not a road, so it’s not important . ………….:-(

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