European Road Trip Planner
Sonia Lebofsky
Summary
This shiny app can be used to help you plan your European road trip!
Here's how it works:
From the provided list of EU cities, you find the one you are starting your trip from.
Use the slider to tell the app what is the maximum distance you are willing to drive (in kilometers).
The app will then show you all the possible trips starting from the city you chose, but then highlights the cities you can reach given your max driving distance.
The Dataset
The app uses the eurodist dataset from the R datasets package.
The dataset consists of the road distances (in kms) between 21 cities in Europe. The data is from a table in The Cambridge Encyclopaedia.
The data is given as dist objects, which is easier to manipulate when converted into a matrix format.
The next slide shows a preview of the actual data.
library(datasets)
data("eurodist")
head(as.matrix(eurodist))
Athens Barcelona Brussels Calais Cherbourg Cologne Copenhagen
Athens 0 3313 2963 3175 3339 2762 3276
Barcelona 3313 0 1318 1326 1294 1498 2218
Brussels 2963 1318 0 204 583 206 966
Calais 3175 1326 204 0 460 409 1136
Cherbourg 3339 1294 583 460 0 785 1545
Cologne 2762 1498 206 409 785 0 760
Geneva Gibraltar Hamburg Hook of Holland Lisbon Lyons Madrid
Athens 2610 4485 2977 3030 4532 2753 3949
Barcelona 803 1172 2018 1490 1305 645 636
Brussels 677 2256 597 172 2084 690 1558
Calais 747 2224 714 330 2052 739 1550
Cherbourg 853 2047 1115 731 1827 789 1347
Cologne 1662 2436 460 269 2290 714 1764
Marseilles Milan Munich Paris Rome Stockholm Vienna
Athens 2865 2282 2179 3000 817 3927 1991
Barcelona 521 1014 1365 1033 1460 2868 1802
Brussels 1011 925 747 285 1511 1616 1175
Calais 1059 1077 977 280 1662 1786 1381
Cherbourg 1101 1209 1160 340 1794 2196 1588
Cologne 1035 911 583 465 1497 1403 937
The app can be run at https://sonialebofsky.shinyapps.io/tripApp.
Here's a screen-shot of the app in action:
