Wednesday, February 21, 2018

The Queen's Travel Scratch Map


I've visited 10 countries. Which is 3.4% of the countries in the world. If you are interested in which countries I've been to then you can visit my personal travel scratch pad.

However, rather than looking at my travel map, you can have far more fun creating your own map of all the countries that you have seen. Scratch the World is a fun little interactive map which you can use to boast about all the places you have visited around the world. Just click on all the countries you have been to and Scratch the World will mark them off, work out the total number of countries you have been to and tell you what percentage of the world's countries you have visited.

You can even get a unique URL which you can use to share with your friends when you want to boast about your global travels.

Mind you, no matter how much of the world you have seen, the Queen's travel map is still much better than yours. After all she has visited hundreds more countries than you (if I had my own plane, train, and ocean liner I would have also have visited more countries than you).

The Travels of Queen Elizabeth II is an interactive map of every country the Queen has visited since 1953. In total the Queen has visited 110 countries. This is 43% of the countries featured on Scratch the World. Therefore there are still quite a few countries for the Queen to visit.

If you are in anyway interested in the global travels of the Queen then you can use her travel map to view all the countries she has visited by decade and by type of visit (state or commonwealth visit (royal beach holiday is missing from the available options)).

Tuesday, February 20, 2018

Europe isn't where you think it is


Africa, Europe and South America aren't where you think they are. According to John M Nelson lots of us think that Europe and Africa are a lot further south than they really are and that South America is further west than it really is.

In Misconceptions Nelson explores these three commonly held geographical misconceptions. Obviously whether he is correct or not depends on how good your mental map of the world actually is. Where he is right, as always, is in his immaculate cartography. I particularly like how his maps seamlessly transition from the style of a hand-drawn map sketched in a school exercise book to a full-sized globe in your grown-up office or library.

If you are also impressed by the realistic looking globes then you can find out how to create them in Globification - Turn Your Maps into Plausibly Realistic Globes. The tutorial even includes some downloadable images which you can use as the background for your own interactive globes.

Pennsylvania's Non-Gerrymandered Map


One consequence of redrawing electoral districts to try to squeeze all the voters of one political party into one district is that you end up with some very oddly shaped districts. Back in 2014 the Washington Post mapped America’s most gerrymandered congressional districts. One conclusion that they reached from mapping loads of oddly shaped districts was that you can get a good idea of how gerrymandered a district is by how irregular its shape is.

You might want to think about this irregular shape rule when reading the New York Times' article The New Pennsylvania House Districts Are In. We Review the Mapmakers’ Choices. Yesterday the Pennsylvania Supreme Court issued a new congressional map to replace the one gerrymandered by Pennsylvania Republicans.

The Time's article includes a series of maps which allow you to compare the Republican gerrymandered districts with the Supreme Court's redrawn districts. When switching between the two maps for each district you can look out for irregular shapes where boundary lines are snaking out to capture neighborhoods that don't seem to be a natural fit. The Supreme Court's district maps do seem to be much more compact than those drawn by the Republicans. The Supreme Court maps don't have as many "squiggles and offshoots and tentacle-looking protuberances" that are common to gerrymandered electoral districts.

The Washington Post map of America's most gerrymandered districts gives the old Pennsylvania congressional districts gerrymander scores mostly in the 80's & 90's. Scores that indicate the districts have been highly gerrymandered to favor one political party over another. The fact that the Pennsylvania Supreme Court has redrawn a much fairer map doesn't appear to be very good news for the Republicans. However we will have to wait until the elections later this year to see which party really wins in each new Pennsylvania district.

The World's News - 2017


2017 was a momentous year. It began with the swearing in of Donald Trump as the 45th President of the United States. It ended with the USA withdrawing from the UN's New York Declaration, a policy adopted unanimously by 193 states to help improve the fate of refugees and immigrants. You can read more about the major events of last year in World 2017.

World 2017 is a summary of the major news, sports events and scientific discoveries that happened last year. It provides an overview of the global political, economic and social events which shaped 2017. As you scroll through World 2017 you progress chronologically through the year. As you progress an interactive globe rotates and shows you the locations of major events around the world, while the scrolling sidebar provides a summary of each of these global events.

Under the hood World 2017 is using Klokan Technologies' WebGL Earth. WebGL Earth is an open-source virtual globe. The WebGL Earth JavaScript API is based on the popular Leaflet JavaScript API and is therefore relatively simple to use, especially if you have experience of using the Leaflet mapping library.

Monday, February 19, 2018

The Carpooling Map of Europe


BlaBlaCar is an online carpooling service. It connects passengers looking to make a journey with car drivers who plan to take that route. Passenger and driver then share the cost of the trip. BlaBlaCar operates in 21 countries, most of which are in Europe.

BlaBlaCar has around 60 million users and it matches lots of passengers with car drivers willing to give lifts. For example last month 39,752 BlaBlaCar drivers passed through Paris on route to other locations. You can view how many rides passed by your location with BlaBlaCar's Destinations map.

Enter a location into the map and you can view all the trips which passed nearby in the last month. The map uses Mapbox's pitch feature to provide a neat oblique overview of the extent of all the journeys that passed through your selected location.

The Over Emotional Map of New York


Crying in Public is a crowd-sourced map of New York's emotions. A place to share those New York moments when everything that could go wrong has gone wrong.

Sign in to Crying in Public and you can mark those New York locations where you too have felt overpowering emotions. To show what kind of emotional episode you experienced at your selected location you can choose from a number of different emojis. For example a broken heart emoji can be used to show the location of a break-up, a flame emoji can be used to show a spot where you were once fired or a green face can be used to mark a place where you have vomited.

The map was created with the Leaflet mapping library but uses the Google Street View Image API to show a static Street View image of emotional locations shown on the map.

If you like emojis with your maps then you might also like Air New Zealand's new #EmojiJourney map.

The Noise Map of Berlin 2018


Every five years, the Berlin Senate Department for the Environment, Transport and Climate Protection calculates the noise levels of every house in Berlin. The Berliner Morgenpost has used the data to create an interactive map showing road, public transit, airport and industrial noise throughout the city.

If you hover over any part of the Berlin Noise Map you can view the noise levels at that location. The information includes the recorded decibel levels for both day & night-time and a breakdown of the decibel levels from road and transit noise (and planes where relevant). The map does not include ambient neighborhood noise, for example from nearby pubs and nightclubs.

The map doesn't reveal too many surprises. As you might expect properties on the flight path into and out of Tegel Airport are among the noisiest. Elsewhere it seems that the busier the road you live on then the noisier it is (which makes sense when you're measuring road noise).

Sunday, February 18, 2018

Emoji Map Search


Air New Zealand has invented a new way to explore New Zealand. Just Tweet your favorite emojis to Air New Zealand and they will send you a personal interactive map of fun places to visit in New Zealand.

If you use the #EmojiJourney hashtag and three emojis in a Tweet then Air New Zealand will send you a link to a Google Map of New Zealand featuring recommended things for you to see and do - based on your choice of emojis. For example if you send a wine glass emoji, a bike emoji and a ski emoji you will be sent a link to a map showing wineries, great places to cycle and places to ski.

If you don't want to use Twitter you can just go to the #EmojiJourney map and search the tourist map of New Zealand by selecting your favorite emojis. You can even get your own emoji map by simply appending emoji symbols to the end of the map's URL.


Emojis can also be used as a simple universal non-written location coding system. For example, What3Emojis is a revolutionary new way of addressing the entire world using the only common language of the entire human race, the emoji.

With What3Emojis the Earth is divided into 4m x 4m squares which are randomly assigned a unique three-emoji combination. If you want to share your location with someone else all you need to do is send them the three emojis assigned to that location. They can then enter the emojis into What3Emojis and be shown that location on the interactive map. Simple!

Saturday, February 17, 2018

Saying Goodbye to the American Dream


California's 46th Congressional District is set to lose $529,600,000 from its annual GDP. Arizona's 7th Congressional District is set to lose $495,900,000 and Texas's 15th Congressional District will lose $411,800,000. This is the amount of local GDP which is contributed by non-citizen and DACA recipients. It is the amount of the local economy which could be lost if Trump is successful in phasing DACA out.

Esri has released an interactive map which visualizes the areas of the USA with the highest percentage of non-citizen residents & DACA recipients and the estimated economic impact that their removal will have on an area's GDP.

Using data from the American Community Survey and other sources, Esri's Where Will Changes to Immigration Policy Have the Greatest Potential Impact? visualizes the percentage of non-citizen foreign-born residents in each state, county, and city, along with information about sanctuary areas. The map also uses data from the University of Southern California to show which congressional districts have the largest number of DACA recipients and how their removal would effect the district's annual GDP. In many areas the percentage of non-citizen residents is very large and their removal will have a devastating effect on the local economy.

Friday, February 16, 2018

Redlining in Modern America


Under President Franklin D. Roosevelt's New Deal black homeowners were discriminated against by redlining maps. These maps identified areas with significant black populations as risky for mortgage support. Black homeowners living in these areas were more unlikely to be successful when trying to refinance home mortgages using the government sponsored Home Owners' Loan Corporation.

The Fair Housing Act of 1968 banned racial discrimination in lending. However new research from Reveal from The Center for Investigative Reporting shows that people of color still face discrimination when applying for property loans, particularly in a number of Southern cities. The year long analysis discovered that in 61 metro areas redlining is still effectively in place.

An interactive map in Reveal's For People of Color, Banks are Shutting the Door to Home Ownership identifies the locations of these 61 metro areas. If you click on any of the identified metro areas on the map you can discover what evidence Reveal discovered of discrimination in the area, including how much more likely black, Asian, Latino or Native American applicants were to be denied home loans than white applicants.


Another interactive map from the National Community Reinvestment Coalition allows you to explore how the Home Owners' Loan Corporation (HOLC) redlining maps are affecting cities today. The interactive map allows you to compare modern data about income status and the minority population with the HOLC's historical redlining security ratings.

Using the maps you can see if neighborhoods in your city with 'good' HOLC redlining ratings have remained largely white and wealthy or whether your city has become a beacon of social and racial equality.


You can view the original redlining maps on the University of Richmond's Digital Scholarship Lab website. The Home Owners' Loan Corporation was a government-sponsored corporation created as part of President Franklin D. Roosevelt's New Deal. Its purpose was to refinance home mortgages which were in default to prevent foreclosure.

The HOLC is often cited as starting the practice of mortgage redlining. Redlining is the process of denying services to residents of certain areas based on the racial composition of those areas. Mapping Inequality, Redlining in New Deal America allows you to view the residential security maps created by the Home Owners' Loan Corporation to indicate the level of security for real-estate investments.

The areas marked in blue on the maps are the neighborhoods which were deemed desirable for lending purposes. The yellow areas show neighborhoods deemed 'declining' areas. The red areas are the neighborhoods considered the most risky for mortgage support.

The result of these redlining maps was that residents in the more affluent and largely white neighborhoods were far more likely to receive financing. Residents in the poorer and black communities were deemed more risky and were therefore less likely to receive financial support.