1. Pubs of Dublin “ It would be a puzzle to find a route across Dublin
Without passing a pub.”
~Paraphrased from
James Joyce, Ulysses
Group:
Liz Giles
Mishon Hopkins
Markus Henning
Evan Moon
Jana Taylor
Davy Byrne’s Pub

2. Motivation Answer the “age old” question posed by James Joyce:
“Can one cross Dublin without passing by a pub?”
Implement tools acquired in Geography 176, such as
as geocoding and networking.
Facilitate tourist navigation to key entertainment sites in
Dublin (i.e. pubs).
Implement ideas for related uses, such as urban planning (proximity of housing, schools, businesses, etc. to pubs).

3. Objectives Primary Objective: Secondary Objectives:
Find a route crossing Dublin without passing a pub.
If this turns out to be impossible, try to find the route
that is passing the least number of pubs.
Secondary Objectives:
Find the shortest route across Dublin which passes the
most number of pubs, given designated starting and
ending points for each trial, and excluding freeway and
water transportation systems.
Find the shortest route across (through, around, etc.)
Dublin which passes all the pubs we have located.

4. Background
The area around Stephen’s Green - especially Harcourt Street, Camden
Street, Wexford Street, and Leeson Street - has
become the centre for some of the most popular nightclubs and
typical Irish pubs in Dublin, and is a popular tourist destination.
Map Of Stephen Green Area
By Google

5. Temple Bar and Harcourt St.

6. Background Continued…
The administrative area controlled by Dublin City Council contained a population of 505,739 people as of the census of The same census gives us population numbers of 1,186,159 in the Dublin Region and 1,661,185 in the Greater Dublin Area.
Approximately 30% to 35% of Ireland’s population live within
the Greater Dublin area, but Dublin is host to only 9% of
Irelands pubs. An internationally notorious area for these activities is the Temple Bar area, a popular tourist destination.

7. Generalized Map of Dublin: Royal Canal Area
Most of the pubs in Dublin are found within this centralized location.

8. Area of Study with Pubs via Google Earth

9. Methods Data collection for key pieces research material, including:
Map resources: modern pub locations, street-level map
of Dublin obtained from Martin Charlton
Historical resources to compare to pub/street locations
and numbers from 1922 (when Ulysses was published),
with present, as well as to provide context.
Input data into ArcGIS and Google Earth.
Convert pub data from KML to shape file with ArcGIS.
Networking
Geocode pubs
Establish a network of Pub locations along a street centerline layer of Dublin.

10. Methods Continued…
Utilize algorithms to find and establish paths which:
Do not pass pubs (nodes) along the network.
Pass as many nodes as possible while covering the shortest
distance between a point on one periphery of the network to
another point on the opposite side.
Possible, add weights to pubs based on factors ( example;
proximity to center, costs , ratings, etc.), analyze new routes based on weights.

11. Data Sources Martin Charlton, National Centre for Geocomputation
National University of Ireland, Maynooth
Dublin Street Atlas: Scanned maps from Dublin
Professor Goodchild, University
of California, Santa Barbara
GeoDirectory
Ireland’s Address Directory
Upload spatial data from
Properpint.com data to
Google Earth

12. Anticipated Problems Data Sources Map Quality Georegistration
Obtaining Data
Weighting Issues
Shortest path algorithm
techniques
Accessibility Issues
Define area boundaries.
Terrain difficulties (transversability): canals, train tracks, busy/wide streets, etc.
Defining “passing a pub.” Constructing rules for what is or is not transversable (eg. Crossing the street).

13. Anticipated Problems Continued…
Address Matching
Ireland does not have anything equivalent to zip-codes.
Geocoding issues
Geodirectory

14. Likely Results
Routes across Dublin pertaining to our objectives will be found or eliminated.
Given that we have located at least 260 pubs just within the relatively small area of central Dublin, our confidence level of passing a pub while traveling through central Dublin (on a path from one side of the city to the other) is high.
However, this does not exclude the existence of a route which does not pass a pub while crossing through downtown (central) Dublin.
Path(s) without passing a bar will likely be very long and contain several twists and turns.
The results between the current pubs and those in existence in 1922 (James Joyce) will be very different. We expect there to be a much larger number of pubs now than were present in 1922.

15. Sláinte!
(Cheers!)