European City Modal Split Database: An invitation

This open project from EPOMM – the European Platform on Mobility Management — is an absolutely brilliant idea. It does not require much explanation to get started; you can be off and going if you simply to click here and dig into their Google map. That said, a few words of introduction may not be altogether without their use to help you take full advantage of their good work. Just below is what you see when you click to the site; however one thing that I completely missed the first time around was the menu offering several alternatives, which you will find just to the left of the welcoming line and toward the top of the screen. You will see that the menu offers a handful of options including a capacity to select cities, compare cities and also a form at http://epomm.eu/tems/upload.phtml which will allow you to enter data on your city to further enhance the usefulness of this collaborative tool.

Welcome to the Euro-city modal split database

This database was made with the support of Intelligent Energy Europe in the project EPOMM-PLUS. It has started in May 2011, so not too many data are online yet. Please select a city in the map below or compare a group of cities using the menu on the left.


At the present time (and I think it is a good idea to ensure the integrity and comparability of the data) the uploaded data are being examined and processed by the EPOMM team before they are put online. (It also needs to be noted for now that their processing capacity is somewhat limited, so in the first stage they decided to limit the data entries to Europe.)

Here is a sample of from a set of Italian cities as an example:

It is altogether fair to ask how “solid” is the reported data. As a necessary caution, one does have to give at least some thought to  the actual integrity of the data and its basic comparability, always a major problem on these inter-city comparisons — and all the more so when they stretch across statistical and other borders. The EPOMM team is aware of this problem but decided that discussions on solving this problem will be much easier if the current, far from perfect data are easily available..

Beyond Europe
However in answer to our request, the EPOMM team leaders have generously agreed to accept and process date on up to twenty non-European cities in a first instance to demonstrate the possibility and usefulness of a worldwide database on modal split at the city level. EPOMM is open for supporting a more universal system in the near future– if the processing costs for this can be covered

Here are their guidelines for data entry, in case you are interested in the possibility of adding your city to this open international database.

Some methodological guidelines for entering your modal split date

No decimal values
It is very popular among traffic planners to provide seemingly very exact numbers – like “we have 3.44 percent bicycle share – which is an increase of 37.52% from last year”. TEMS intentionally does not provide such numbers, as this is always an exactness that in reality does not exist. Moreover, such multiple digit numbers make reading, comparability and memorization more difficult: for example 3.42 looks quite different from 2.98 – while in reality it is the same – around 3%. And it is hard to compare 3.42% with 11.96% – while to compare 3% and 12% is much easier.

Cities above 100.000 inhabitants
TEMS aims to show the modal split of all cities in the EU with more than 100.000 inhabitants (there are well over 600 such cities). Smaller cities are also in the database, but might be suppressed in the future if there are too many cities on the map.

Check by the administrator
All uploaded cities are checked and located on the map by the administrator after the upload process. If the numbers do not add up to 100% or if the data for any reason seem not to be OK, the authors are contacted. Until this is clarified, the city data are not made public.

Only 20 cities at a time – deeper analysis only by request
You can only look at the city data of 20 cities at a time. If you are interested to make a deeper analysis you can ask the administrator by sending a mail with the form below. You will receive a reply within a week. However, requests from EPOMM member states are treated preferentially.

Cities should upload and control data themselves
Ultimately, EPOMM would prefer that each city takes responsibility for their modal split data and uploads and controls the data themselves. However, TEMS has only started in May 2011 and is not yet well known. Therefore EPOMM-PLUS and its partners in most European countries have taken the initiative to collect the city data – and therefore also show up as contact persons.

Next stages: Expanding the database

We find that this tool gives considerable food for thought, as well as valuable information for planners and policy makers, and we hope you will have a close look and communicate your reactions either to our readers and directly to the EPOMM team.

1. Within Europe

This process is ongoing and well in hand by the EPOMM team and their European partners. Since new data is being entered regularly, we propose that you drop in from time to time to the project homepage at http://epomm.eu/tems/index.phtml to check out their progress.

2. World Wide coverage:

Everything is in place to get started with this now. So one you have made your decision to get both the latest and some of the historical data of the last years on line for the purposes on international comparison, all you need to do is take contact as below. (With please copies to editor@worldstreets.org so that we can follow progress. Thank you.)

Reader Comments:

You will find them just below this article and we recommend that you give them at least a quick read. They bring up some ideas and cautions that are definitely worth keeping in your sites.

Contacts:

EPOMM Coordinator: Karl-Heinz Posch
c/o Eurocities Square de Meeûs 1 B-1000 Brussels Belgium
Tel: +43 316 81 04 51-26 email: posch(at)fgm(dot)at EPOMM

Web administrator for TEMS: Glen Turner, glen(dot)turner(at)lept-eu(dot)org

Country administrators: You can also contact the country administrators on the EPOMM country pages http://epomm.eu/countries

# # #

We very much hope that this information (and inspiration) will be useful to you. If you have ideas, suggestions, corrections or observations on the date, the process, the use, this is the place to share them. Either in the Comment box here or to editor@worldstreets.org.

Team work! Sharing! Victory!

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5 responses to “European City Modal Split Database: An invitation

  1. I am very curious what queries for a “deeper analysis” would reveal. I would ask about:
    * Combined journeys (e.g. bike-PT)
    * Change over time (but think of an increase in cycling and a decrease in walking — does this mean, for example, that people’s arms are relieved from carrying shopping and/or that urban development policy has resulted in more centralized destinations?)
    * Who is cycling (men, women, native, immigrant, poor, rich…)
    * Mode transfer (car to bike, PT to bike, and as mentioned walk to bike…)
    * Impact of the various modes on the environment…

    Ideally, all of this is included in a more three-dimensional, as it were, resource, and with data-collection supported by the EU that seeks answers for all of the above, and more (some states collect a lot of this and others do not).

    But further, as “green” mode share – cycling in particular – is a hot item for mayors, the “real rate” of mode share – i.e. adjusting it based on the above criteria – is very important. (For example, a city may have more men than women on bikes, and far more poor than rich people on PT…). In my view a mayor should not be able to boast about a certain share if the people actually doing it are not evenly-distributed demographically). I am go into some detail on this in an article in Cycling Mobility no. 4, out in December.

  2. This is interesting, I made a search in the EPOMM database for cities with a 20% or higher level of cycling. All have a relatively low level of PT. Bad PT does not mean more cyclists, A look at the UK proves this.

    But could better cycling infrastructure lower the user base of PT, lowering the service frequency and thus raising the modal share of cars? Or is ticket price to behind this.

    Odense seems to be something of an exception. Why?

  3. @Todd: let’s see how much data of the current, quite diverse quality we can get. Then we can start improving it. This is a first step. Timelines are the second (already implemented). Metropolean area-data a third.
    @ Ian: isn’t this great? You can just go and start analysing. Try values of 15% bicycle or higher, and you will find more exceptions. Look at the eastern cities and their extremly high PT-shares. Compare cities of similar size. Of high car-mode share, etc. And the database is still far, very far from complete.

  4. Actually Paul, there is provision for that. If you go to http://www.epomm.eu/tems/upload.phtml you will see under the seciton marked “Car*” the ability to distiinguish driver, passenger, taxi, motorcycle. You might if you wish drop a line to Web administrator for TEMS: Glen Turner, glen(dot)turner(at)lept-eu(dot)org, with a copy to us here. I think it’s a great point and I woudl like to see this data too.

    Do you think you might encourage someone to submit the M/S data for the three largest cities in NZ?

  5. This is wonderful and will be a great help to my research here in Germany.
    Thanks.

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