3 Crime Maps: Point collation

 

Quick update of the Placemark Clustering project: we’ll be doing user tests using the uk police crime map later this summer (discussed below) comparing it to a chloropleth grid (translation = head map based on grid, I explain further here)
In thinking about this I’ve hunted down some examples and I thought it would be interesting to name check 3.


No Collation: The first map is Oakland Crime Spotting (bottom inset in figure) that is very similar to San Francisco Crime mapping, reviewed here. Unlike the other two maps it attempts no point collation at all, I image the authors would argue that they deal with the problem by providing sophisticated filtering tools to reduce the point density. However, it doesn’t help if the user wants to get an overview picture of crime across the area the map covers.
Traditional Choropleth: Switching to the the UK, the Metropolitan Police (=London for non UK readers) offer a choropleth map based on wards and subwards (top left insert). I regard this as the traditional approach. Notably it doesn’t show actual figures for postcodes, only sub wards – a sub ward is a collection of postcodes. My problem with this is that almost no one knows the boundaries of wards and sub wards so its a strange way to split the city up. (Aside: in my experience, Londoners tend to split London up based on tube stations)
Point Collation: The UK police offer a national map which uses point collation (top right insert). This is the main one we’re planning to test as IMHO it isn’t an effective way to visualise the data (related post). It offers a finer grain of data – you don’t actually see the true location of the crime but it is collated down to the postcode level. In London, a postcode is roughly equal to a single street.

 

Google Maps Masups 14

Loughborough University Campus Map


Loughborough University’s campus map is a great example of how to use the Google Maps API to help students and visitors find their way around a large campus.

The map uses the custom overlays function to overlay a custom map of the university on top of the Google Map. The custom map overlay includes features and locations that are not on Google Map’s own map tiles, such as trees, tennis courts, football pitches etc.

The map also makes good use of polygons to make buildings on the map interactive. If you click on any of the buildings you can view the building’s name, a photo of the building and links to its page on the university’s website.

Finally, the map includes a very nice search facility that allows you to search for a building or feature by name or by category.

Greenpeace – Moscow Recycling Map


Greenpeace has released a Google Map of recycling stations in Moscow.

The map shows the locations of recycling stations for paper, glass, plastic bottles, old electronics and clothing in the Russian capital. The map includes custom made markers that are colour coordinated to indicate the type of recycling possible at each station.

It is also possible for users to add the location of missing recycling locations to the map.

Google Hotel Finder


Google has today launched Hotel Finder, a new search tool to help you find a hotel.

The tool includes an interesting Google Maps interface that allows you to search for hotels by location. When you enter a location into the Hotel Finder the map shows an initial shape based on the most popular area for visitors to stay. Users can drag the shape to define more closely this area, e.g. close to the ocean or along Sunset Boulevard.

Hotel Finder also shines a “tourist spotlight” on the most visited areas in the selected city. Tools in the sidebar allow you to adjust the price of hotels you wish to view on the map and to compare the current price to the hotel’s typical price.

Livebookings Live Map


Online clothes retailer Zappos started a trend when they created their live Zappos Map. This real-time map was created to show the latest orders placed on Zappos live on a Google Map.

The Zappos Map was quickly followed by Net-a-Porter Live, ThisNext and The Book Depository Live. Now Livebookings, Europe’s largest online booking service for restaurants, has released a live map of restaurant tables booked by its customers.

Livebookings Live takes the reservations coming in, removes the customers’ names, and plots them on a map showing where, for how many, and with what frequency the Livebookings system is used.

Geohashing Wiki


The xkcd Geohashing Wiki is inviting you to participate in the wonderful world of random location meet-ups.

Geohashing is a method for finding a random location near your current location and then visiting it. Every day the geohashing algorithm generates a new set of coordinates for your location. Everyone in a given region gets the same set of coordinates.

After you have visited the random location you can document your expedition on the Geohashing Wiki, including details of who was involved in your expedition and pictures of your adventure.

To get your daily randomised coordinates visit the Geohashing Google Map. Click on the map to show your location and, using the geohashing algorithm, your random location will be generated by the map.

Zoopla: UK Property Heat Map


Real-estate website Zoopla has created a heat-map of UK property prices.

The Google Map provides a quick overview of where properties are affordable and where houses are more expensive. For example if you zoom in on London, you can see a distinct pattern of expensive property in the commuter belt around the capital.

World Tour Schedules on Google Maps


Artist / DJ Richie Hawtin has created a gorgeous looking Google Map for his current world tour. Custom map tiles have been used to give the map a distinct design. The dot-matix look of the design is continued in the custom made map markers and information windows.

Dates on the tour are displayed on the map and a slide-out sidebar shows the dates in list form.

The ‘One City’ world tour continues until December.

3D buildings in Google Maps for Android arise in London, Paris, Barcelona, and more

Last December, the release of Google Maps 5.0 for Android ushered in the next-generation of mobile maps where you can rotate, tilt, and zoom in and out of 3D maps. Whether you’re on the go or playing with a new phone, seeing a 3D skyline spring up in New York City, Zurich, Milan, and other cities is a helpful, fun, and unique experience–an experience we want as many of you as we can to have for your city.

We’ve been adding more cities and you will now find that 3D buildings are available in London, Paris, Barcelona, Stockholm, Singapore, Lisbon, Boulder, and 11 major cities in South Africa. 

3D buildings in London and Barcelona
You don’t need to update the app, just open Google Maps for mobile on your phone with Android 2.0+ and zoom in to a city with 3D buildings.