Today in the British press a lot was being made of an announcement that promised the addition of 100,000 extra seats on the rail network. While I was listening to this announcement on my car radio I was sat in a queue at a set of traffic lights.
Hearing this news a set of parallels between the railways and the corporate WAN v the roads and the Internet occurred to me.
In the UK we manage the rail network as a single entity with a single owner. They provide the tracks and the stations, they also do all of the scheduling. The railways are highly managed with intricate timetables, specific safety measures and centralised capacity planning. There are specific routes; if you want to go somewhere where there isn’t a direct route you have to go via another location. Extending to a new location is a very costly undertaking. In the UK most railway lines lead to London, there are many journey that require you to go into London to come out of the other side. The trains that travel on the network are operated by a small number of organisations who need to follow a strict set of standards the result in an almost uniform set of designs.
Corporate WAN’s are highly managed with centralised capacity planning. Lots of money is spent on safety measures ensuring that the only thing on the network is what is allowed by the corporation. The WAN connects certain locations to other locations. Extending to a new site is an expensive thing to do. The network is generally centred around a small number of dominant data centres. The number of device types that connect to the network is limited so that each of them can be ensured to work.
In the UK the roads are managed by all sorts of organisations, town planners, county planners, central government even private organisations. There is no central scheduling or capacity management. If you want to join a road, you join the road. If you travel from one place to another you choose the route that you take and when you travel. If someone builds something new they always build a road to it. You can use all sorts of different vehicles on the roads, you get to express yourself in the type of vehicle that you choose.
You can probably guess where I am going here.
The Internet is not centrally managed, it is managed by a number of different organisations and service providers. What you connect to the Internet is up to you, as long as it works with IP then it can be connected. You can get to any source across the network. You don’t create specific routes, you join and your data flows. If people build something new, someone is likely to extend the Internet to it. You get to express yourself through the device that you choose to connect with.
So if these parallels exist do some of the things we see on the the rail and the road also ring true for the Internet or the corporate WAN?
Whenever there is an accident on the roads it receives little coverage because it’s a regular occurrence and few people are impacted. Whenever there is an accident on the railways it generates all sorts of coverage. I wonder if this has a parallel?
Even when there are compelling reasons to travel by train, people still prefer to travel on the roads. I think I know what the parallel is here.
People are far more upset when a train is late compared to their annoyance at waiting in a traffic jam on the roads.
People would rather drive to Tesco’s than take a train into a town.
One parallel is definitely straightforward – the roads grow at a huge rate compared to the rails.
Anyway this post is already getting too long. I just have a feeling that there are things that those of us in IT could learn from the transport industry here. Perhaps this is going to require a second post.