MapQuest Developer Blog

  • MapQuest at SXSW Preview

    We're loading up all the gear to make our annual trip to Austin, Texas for SXSW Interactive. This year will be bigger than ever and I wanted to recap all of our plans and happenings so you can make sure you don't miss a thing. If you're busy printing out your directions and have your sights set on BBQ, this post is for you: [caption id="" align="alignleft" width="250" caption="MapQuest's Street Team Bikes"]MapQuest's Street Team Bikes[/caption] Official Mapping Sponsor of SXSW Download SXSW’s official mobile app, SXSW GO, to build your schedule, see a map of what’s going on where, and more. CruiserQuest Those crazy people riding around Austin on cruiser bikes later this week - that'll be us. We're also giving a bunch of bikes away. Track down the MapQuest street team, show us your MapQuest mobile app, and you get an entry. Check out this blog post for full details: CruiserQuest: Win a Cruiser Bike at SXSW
    BBQuest MapQuest's BBQuest: Take a Road Trip to Salt Lick BarbecueOn Sunday, March 13th, join us on our 2nd Annual BBQuest Road Trip to the famous Salt Lick Barbecue. Hop on a bus loaded with tech influencers, VCs, entrepreneurs, and a bartender, then go get some tasty BBQ. Finally, rock out with our friends Shinobi Ninja, who will be playing us off as we get you back to Austin for the evening events. MapQuest Booth If you thought our booth was crazy last year, wait until you see our set-up this year. I can't tell you about all the awesomeness (air hockey) we'll have there, but make sure you stop by the Trade Show from March 14th through the 17th. We'll be near the 4th St. entrance. In the booth, we'll be demoing our mobile applications, and showing you how you can add location data and maps to your application. So, whether you're super-coder, OpenStreetMap expert, or just need an easy-to-use tool for adding a directions link to your site, our team will be happy to chat and happy to help. Plus, we'll have happy hours in the afternoon, so we can discuss over a cold one. Das IronGeek On March 15th, MapQuest will be hosting one of the 5 challenges as part of Das IronGeek, an event that puts a set of 6 press and bloggers attending SXSW through a series of fun, technology related challenges, all intended to test their "geekiness." Speaking Gigs Also on the 15th, yours truly will be speaking on the topic of "Interoperable Location Data," along with fellow panelists: Tyler Bell from Factual, Kate Chapman from GeoCommons, Adam DuVander from ProgrammableWeb, and Scott Raymond from Gowalla. Right after that, you can hustle on over to listen to Christian Dwyer, MapQuest's fearless leader talk about "Rebranding: Tales of a New Identity," alongside AOL's VP of Marketing: Maureen Sullivan. See you in Texas Hope to see you in Austin. Travel safe and have a great time!
  • all our addresses are belong to you

    MapQuest is providing several address files that contain user-provided latitude and longitude locations across the world. Our users provided these exact locations to us so that they could be mapped correctly on our MapQuest maps. There are currently three (3) main files - one for the United States, one for Canada and one for Europe.  More information can be found on our OSM wiki page. We didn't want to just import these addresses directly into OSM, but wanted them to be available to anyone that wanted to have them.  To be clear: 1. these addresses are user provided 2. there is a high degree of ground-truth from these users 3. they WANTED to be in the data and be correctly mapped 4. we've checked with our lawyers, and yes, you can have them - UNENCUMBERED! Our good friend, Ian Dees, has written a script to convert the files listed on the MapQuest wiki page into OSM format!  Check out the code here on GitHub.  Thanks Ian, you rock! Happy mapping!
  • Joining the Open SDK: Draggable Bike Routes!

    [caption id="attachment_1138" align="alignright" width="285" caption="Chris Weaver - today's featured MapQuest Dev."][/caption] Some days it can be a difficult task to overcome writer's block and other days, like today, you're asked to write about an awesome new service and blogging comes easy. So without further ado, I present you with draggable bike routes for our new Open JavaScript SDK! The customization that drag routing on open data allows is by far superior to anything we've ever had (of course, until our next update). You'll also see below that implementing this is a snap. But first, a special thank you goes out to our Systems Architect, Chris Weaver, who has put forth a significant effort to help support the Open JavaScript SDK and the new bike routing options! Now in order to fully understand the benefits of this service, let's take a look at some of the main user concerns and what MapQuest can do to address them.

    Map is Missing Data

    Know a shortcut specific to cyclists/pedestrians? Add it to OpenStreetMap (OSM)! The new data will then be picked up by the MapQuest servers so you and everyone else will be able to drag route on the new bike path. If you need assistance with adding bike paths in OSM, be sure to check out this great tutorial over at Cyclelicous. [caption id="attachment_1113" align="aligncenter" width="500" caption="Missing shortcut (walkway) for cyclists!? Just add it!"][/caption]

    Altering the Bike Route

    If you plan on biking in Alexandria, VA, and you suddenly crave frozen custards from The Dairy Godmother (my favorite!), simply drag the route to your desired location. Both the route and POI locations are draggable and can help you with all your last minute customization needs. [caption id="attachment_1118" align="aligncenter" width="500" caption="Customizing the route by dragging it farther south."][/caption]

    Printing Out Directions

    As expected, the SDK can return a narrative of the OSM directions which can then be used as a cue sheet for your ride. If you need to customize it further by drag-routing, no problem! The directions will also get updated automatically. [caption id="attachment_1127" align="aligncenter" width="500" caption="The directions update as the route gets dragged."][/caption] Also of note is when dragging the bike route, the algorithm is smart enough to only route you on a bike friendly path. For example, trying to drag your route on an interstate or areas where bicycle access is set to false in OSM will fail. As you can see, there's really no excuse now for you to not develop a savvy MapQuest application that spits out great bike routes... ok, so maybe there's always room for improvement! We already have other bike routing features in the works so please stay tuned. Thanks to everyone who's already provided feedback and the cycling community for embracing our services! And in case you're wondering, drag routing is also available for both driving and walking directions. Just make sure to add: ribbonOptions:{draggable:true,draggablepoi:true} Simple as that!
  • Open Guidance/JavaScript SDK/Aerial Tiles!? Yes, Please!

    Do you remember when the announcements of the MapQuest-OpenStreetMap (OSM) tiles and style files were a big deal? Or when you all grew ecstatic when we added routing to your OSM contributions?? Well, we're not stopping yet! We're here to confirm once again that MapQuest is taking OpenStreetMap very seriously. Announced today at Navigation Strategies USA by Randy Meech, head of engineering for local & mapping at AOL, we're officially launching: 1) The Open Guidance Service that allows you to create your own real-time, turn-by-turn navigation application based entirely on OpenStreetMap!! 2) The Open JavaScript SDK using strictly the MapQuest Open Services! And, 3) Open Aerial Tiles!

    Open Guidance Service

    A real-time, turn-by-turn navigation app!? How can this be done? Guidance, as seen in the Developer's Guide, is the beefier, bulkier brother of the Open Directions Service and contains additional raw data associated with the route. One of the key differences is that it can also return speed and intersection costs per road segment that allow real-time guidance for navigation applications to more accurately estimate the time until the next maneuver. For example, take a simple route like the following:,-121.911233&to=37.339409,-121.893904&narrativeType=text Response snippet: "GuidanceNodeCollection":[ ... {"infoCollection":["Turn left on McCarthy Boulevard", "Turn LEFT onto McCarthy Boulevard."], "turnCost":12, "maneuverType":4, "linkIds":[4]}, ... ] Referring back to the documentation, you'll note that maneuverType displays which type of maneuver action should be taken (4=turn left), turnCost displays the number of seconds it takes to transition between successive links along the route, and infoCollection provides both a text-to-speech narrative and a display-ready narrative. Keep in mind the above GuidanceNodeCollection is just a small portion of the response returned. The service can also return GuidanceLinkCollection, GuidanceExitCollection, GuidanceRoadInfoCollection, and loads of other details that help provide the means necessary to develop a navigation application.

    Open JavaScript SDK

    OpenStreetMap has already changed the face of mapping, and it continued its march on today as a potential main data source for a real-time navigation application. Because OSM is to be taken seriously, we are proud to release our very first Open SDK! This toolkit grabs the Open tiles created from OpenStreetMap and allows developers to add interactivity to their maps, generate Points of Interests, produce advanced routing between two or more points, do a Nominatim search, plus numerous other features found on To get started with your own mapping application, simply follow the Basic Map documentation, then spruce it up by adding Controls and POIs/InfoWindows. Like all of MapQuest's other Open Initiatives, an AppKey is not necessary and you'll be able to dive directly into the SDK. Identical to the Open Directions Service, the routing options for the toolkit include crowd-pleasers such as multipoint routing, ability to avoid specific road types, and my personal favorite, bike routes! Full documentation is available here. [caption id="attachment_1037" align="aligncenter" width="529" caption="Sample bike route using the new Open JavaScript SDK."][/caption]

    Open Aerial Tiles

    As if the above announcements aren't enough, we're also releasing a new open tileset combining the best of the freely available satellite imagery and aerial photography! The data thus far has mostly been collected from places such as the NASA Jet Propulsion Laboratory and the National Agriculture Imagery Program. [caption id="attachment_1081" align="alignleft" width="300" caption="Flatiron Building in NYC on Open Aerial Tiles."][/caption] It currently offers global imagery at a 30-meter resolution and up to 1-meter for the United States. The service itself is still very much in its early stages as we continue to augment the initial dataset with more and improved data. However, if you'd like to begin using the Open Aerial Tiles now or in the early stages, the process is very similar to using OpenStreetMap tiles. The only change needed would be the tile URLs. OpenStreetMap Tile URL: MapQuest-OSM Tile URL: MapQuest-Open Aerial Tiles URL: Whew! Amazingly, that's all we have for now and there are no more new announcements for the day. We hope you take advantage of some of the aforementioned Open Services and share with us what you've been developing. Questions and feedback are always welcomed on the Open Forums as well as on Twitter @MapQuestTech.
  • It's alive:!

    [caption id="" align="alignright" width="303" caption=""][/caption] Today, the MapQuest team launched the much anticipated site in the Open series: good ol' US of A!  Just like the 10 other international sites we've released since July 2010, this one is focused specifically on the United States and uses OpenStreetMap (OSM) data.  We've included all the great tools and features that you've become used to in the other open.mapquest.* sites: - Map tiles updated every 15 minutes - Search results updated every 5 minutes - Driving directions updated daily - Draggable routes - Sharing and "send to" options - Right click anywhere on the map - Linking directly to Potlatch 2 or JOSM for easy editing - Map Toolbar for easy searching - including the 'Places to Give' icon - 11 different languages to choose from: English, British English, Danish, Dutch, French, Canadian French, German, Italian, Latin American Spanish, Portuguese Spanish and Swedish

    Reporting Map and Route Errors (Bugs):

    With our release today we've added a new feature that empowers every user to become an OSM contributor instantly: the ability to report on any map or route errors you see. No time to sign in and edit? No worries - you can report a bug without signing in - simply select the "report an error" link and fill out the information in the bug reporting window. The data error will be captured and waiting for you or anyone else to fix using the Potlatch 2 map editing tool. The error reporting tool uses Skobbler's MapDust API to log and show errors (map or route data bugs) on the map that have been entered by people around the world.
    [caption id="" align="alignleft" width="174" caption="report an error - left pane search result"][/caption] [caption id="" align="aligncenter" width="158" caption="report an error or edit this location - map pop-up window"][/caption]

    To view data errors in your map, click on the ladybug icon in the map toolbar (hovering over the ladybug icon will show the text: 'Reported Bugs') and if there are errors close by, they will be illustrated by the red ladybug icons. Click on the icon(s) displayed on the map to activate a popup window which contains the logged data error information.  Also within that popup window, are links to correct the error in Potlatch 2 or JOSM.

    [caption id="" align="alignleft" width="171" caption="report bug icon on map toolbar"][/caption] [caption id="" align="alignleft" width="234" caption="sample of a map error bug report"][/caption]

    We're showing these map and route errors to make the data even better in the U.S. and throughout the world - but we need your help with improving and fixing the underlying OSM data!  If you'd like a quick read on how to choose the right editor for you or find out more about editing OpenStreetMap data, click on:

    Nominatim Update:

    But, we’re not done with our Open Source presents – we have more! We updated the Nominatim Search Service API to now include a local (bounded) search, a route search, a facility search and much, much more!  The Nominatim Developer's Guide has also been enhanced to include new samples, which combine searching and routing using the Open Directions Service (see: Search Along a Route) and new parameters.  Click here for more information on the MapQuest Developer Network.‬

    Potlatch 2 Updates:

    We now have the latest and greatest build of the Potlatch 2 Map Editing Tool! This latest enhancement includes additional speed limits, new icons for roads and paths in the left pane menu along with more features added, joining of nodes onto existing ways, tagging multiple roads or POIs all at once and lots of bug fixes too. Look at the latest version here! We'd love your feedback on Potlatch 2 in general and if you're available to do detailed testing using the Flash Debug Player, more information can be found here to help test.

    Map Style Updates:

    More and more updates! Many map style updates are included in our release today:  improved display of house numbers,buildings and grassy areas (such as within a zoo), labeling of one way street arrows and adding colors to foot paths and cycleways. Happy Mapping Days!
    [caption id="" align="alignright" width="259" caption="enclosure shading in zoo"][/caption] [caption id="" align="alignleft" width="314" caption="improved house number labeling"][/caption]
    [caption id="" align="alignleft" width="396" caption="foot paths and cycleways style update"][/caption]
  • Holiday Gift Idea #2 - OpenStreetMap: Be your own Cartographer

    OpenStreetMap: Be your own Cartographer by Jonathan Bennett OpenStreetMap: Be your own Cartographer is another must-have for any map lover, whether or not they currently have any knowledge of OpenStreetMap (OSM). It's well written, nicely organized, and is a great introduction (and beyond) to the entire OSM project. The book begins with a brief history of OSM, an introduction to the OSM website, links to internet resources, and everything else to help you hit the ground running. Once you're feeling comfortable enough to begin contributing and becoming a mapper, the book provides you with information on GPS surveying, data tagging, and various mapping/editing techniques. Three popular editors -- Potlatch, JOSM, Merkaartor -- are also covered in depth, helping to choose the right editor for the reader. Developers and mapping specialists will especially appreciate the latter half of the book where Bennett explores ways to publish your own customized maps using the OSM export tool, Kosmos, and Osmarender. Entire chapters are also devoted to accessing raw OSM data and its API, and manipulating OSM data with Osmosis to fit your needs. Overall, OpenStreetMap: Be your own Cartographer, is balanced in a way that isn't too dense and still covers the key highlights of OSM. It should be noted that this book reads easily and new users will benefit tremendously having just read the beginning few sections. Like OpenStreetMap: Using and Enhancing the Free Map of the World, this book is a valuable OSM resource and makes for an excellent gift for everyone this holiday season! MapQuest was fortunate enough to have a moment with Jonathan Bennett and have him speak with us about OpenStreetMap: Be your own Cartographer.
    How did you first get involved with OpenStreetMap?  Did you ever envision it becoming as successful as it is today? I was in a similar situation to many people who get involved in OpenStreetMap: I had a smartphone and a Bluetooth GPS receiver, and wanted to use them for navigation, particularly for off-road cycling. There was no easy, legal way of doing this, but OpenStreetMap offered a promise, even if in those early days the data wasn't there. I don't know whether I considered where OSM was going at first -- all I was concerned with was whether it would allow me to do what I wanted to do, which was countryside mapping for walking and biking. I did add other features besides the ones I was interested in, and by the time other people started mapping in the same area, it was clear we could do far more with OpenStreetMap than just roads and paths. As an early adopter of OSM, can you tell us what it was like to add and edit data back then?  Was there much standardization at all? Starting with an almost blank canvas was lots of fun, and made every mapping trip easy and worthwhile. There was no aerial imagery or other data for the area I was mapping, so I did everything on foot or by bike. The most common features such as road types were already pretty standardised but there were things people just hadn't got around to mapping yet. As an example, there are lots of turning circles in the roads around where I live, but there was no existing tag for these, so I just went ahead and created one. Now there are hundreds of thousands of them in OpenStreetMap. Is your own personal experience what motivated you to write OpenStreetMap: Be your own Cartographer? I've been writing about technology for 15 years, so condensing everything I'd learned about OpenStreetMap into a book seemed an obvious move. While everyone working on OpenStreetMap's software does their best to write and maintain documentation for the bits they're responsible for, having a coherent set of documentation is a lot harder. Also, while online documentation is fine if you're just trying to get a single task done, it's easier to get an overall picture of a project like OpenStreetMap from a book that ties all the pieces together. I hope my book makes it easier both to understand OpenStreetMap as a whole, and to know how to use the data for specific purposes. What do you hope people will get out of your book? The book is aimed at people who have little or no experience of OpenStreetMap, but are interested in creating and using the data. They may just want it for personal use, like many of us, or they could be working in a company that uses proprietary geodata and is looking for a better solution, or they could be in a local government GIS department. I've tried to keep the book light and easy to read -- it's more to show you examples of the kinds of things that are possible with OpenStreetMap, rather than an exhaustive listing of every last option in every piece of software. The printed version is less than 15mm thick (that's half an inch if you're in the US), so it's the sort of book you can carry around and just dip into when you have a few spare minutes. And finally, we'd like to ask the same question we asked Frederik Ramm, Jochen Topf and Steve Chilton.  Where do you think OSM will be in another 5 years when it's 2015? The great thing about OpenStreetMap is that it allows people to use the data and tools for things you'd never be able to predict, so I'm not going to try to say what people will be doing with OSM. What I think we will see is better integration between all the different parts of the project. We're already seeing the start of this, with bug trackers appearing in editors so that mappers can find, fix and close bugs in the data from a single application, and we should see other types of quality assurance tools like TagInfo being brought into editors as well. What I hope we'll get better at is making it easy for a fledgling mapping community in other countries to get going. Things like localising the tools and services, and adapting tagging conventions to each country need to be easier, so that mappers spend more time mapping, and less time fiddling with the tools.
    We wanted to thank Jonathan Bennett for allowing us to interview him and talk to us about his latest book. Be sure to check it out!
    A special thanks to Kumiko Yamazaki for helping write this review!
  • Holiday Gift Idea #1 - OpenStreetMap: Using and Enhancing the Free Map of the World

    OpenStreetMap: Using and Enhancing the Free Map of the World by Frederik Ramm, Jochen Topf, Steve Chilton Originally published in German, OpenStreetMap: Using and Enhancing the Free Map of the World was first made available in English in September 2010. This book provides a comprehensive overview of OpenStreetMap (OSM) and has become a valuable reference for many mappers. The first half of the book proves to be an excellent source for users who wish to learn about the OSM project, collect data using a GPS, and edit and tag data. You'll find bits and pieces of similar information on the OSM Wiki but if you're looking for a more complete and fluid version, this is it. Everything is explained thoroughly and followed by examples and screenshots. In the second half, the book takes a break from editing and contributing to OSM and instead allows you take advantage of all the hard work that you and everyone else has put in. Users will learn about customizing and publishing their maps through Mapnik, Osmarender, Kosmos, and even uploading your OSM map to a mobile or navigation device. Also included is the section titled "Hacking OpenStreetMap" with over 60 pages devoted to learning about the OSM database server and its API. This will aid you in writing your own OSM software, using Osmosis to filter the data, and when you're ready for it, setting up your own OSM server! This book is the perfect gift for map lovers, GPS addicts, cartographers, GIS professionals, developers, etc, and should be added to their library collection this holiday season. MapQuest was fortunate enough to have a moment with one of the authors, Frederik Ramm, and have him speak with us about OpenStreetMap: Using and Enhancing the Free Map of the World.
    Can you tell us a little about your OpenStreetMap background? How did you first hear about the project and what caused you to become so obsessed? OSM is an obsession, correct? I'd certainly say it is an obsession - albeit often an obsession with the negative! You become obsessed with data that isn't (yet) there, with software that nobody has (yet) written, or with bugs that haven't been fixed. You start helping out a little, and before you know it you're "the guy who edits this area", or "the maintainer of that editor". That's indeed how I got started with OSM - Jochen told me he was getting involved in that great project but how the Java editor was causing him pain, and so I thought I'd have a look if I can fix it... The book, OpenStreetMap: Using and Enhancing the Free Map of the World, seems to encompass a little bit of everything. Is it safe to say that both beginners and advanced users of OSM will find value in it? You bet. The book has four major sections - the first one is basically the "management overview" about OSM, stuff you can read without getting your hands dirty and nice pictures you can look at. The next section then is about contributing to OSM - about mapping and editors, from simple map features to the most complicated multipolygon relation. Then we have a section about mapmaking which is already a more advanced topic, and we top it off with a section on hacking that covers technical details down to the last API call. I should be surprised if there's anyone in OSM who does *not* find anything new in the book. Being but one of three authors, I certainly did! What were some of the challenges faced when translating this book from German to English? It was difficult to find a publisher who would produce the book in the way we wanted it to. Jochen and I are book lovers. (Jochen can hardly visit any book store without carrying away a stack of books!) We thought that we had a brilliant book and we wanted it to look brilliant, too. We wanted it printed on the right stock, we wanted the same glossy color pages in the middle that we had for the German edition... that was certainly something that made things more difficult. Once that was settled though, the actual translation was straightforward - even though I sometimes think that writing a new book would have been easier. We had to re-do all the screen shots and many illustrations of course, and our co-author Steve Chilton from England did a great job at helping us to identify situations where our German OSM background had led us to make assumptions that were not universally true, or where we had chosen examples that someone in the US or the UK might not be familiar with. After the whole thing had undergone cross-checking by a few other helpful OSMers and the obligatory proof-reading at the publisher's, I felt we had so many improvements over the German edition that I started to translate some of them back for the next German re-print! Edits and editing tools are constantly being contributed to OSM. How are you able to keep up? Will there be another edition of the book, and is it already being worked on? We have a book web site ( where we inform readers about anything major they should be aware of. The German book is now in its third edition, with roughly one new edition being published every year. We can't yet say if it will be the same for the English version but if the community likes our book as much as we do, I would not be surprised to see a second edition in late 2011. We all know OSM has already come a long way in just 5 years. Where do you think OSM will be in another 5 years when it's 2015? I think that OSM will be an everyday commodity in 2015. A little bit like Wikipedia is today - you don't need to think if you want to look something up, you go straight to Wikipedia. In 2015, if you say you're using or even involved in OSM, people won't say "oh, that's interesting, tell me something about it" but they'll say, yawning: "who isn't?". And, of course, there will be about 20 books about the topic!
    There you have it! We very much appreciated having Frederik Ramm answer a few questions for us. Please remember to visit to learn more about this publication. Coming soon: Holiday Gift Idea #2 - OpenStreetMap: Be your own Cartographer.
    A special thanks to Kumiko Yamazaki for helping write this review!
  • New Community Accounts for All!

    Big news today as we introduce our new Community Accounts! So what are they, you ask? This new account replaces the current Free and Developer accounts with access to the best of both worlds. Current users have automatically been upgraded. Listed below are a few of these advantages. Or if you care to, please visit the new Terms of Service page. I know - who reads them? Certainly not developers!? I'll summarize here but I'll also feel better knowing you know where to go should you need more information.

    Better Geocoding

    All users now have access to Address Point Geocoding (APG) data. This data has added over 83 million addresses in the U.S. to our already extensive geocoding database and allows for more accurate placements of locations and addresses. These geocode results return a quality code of P1 for our SDKs v6.0 and above, and a quality code of L1 for v5.* and older with a coverage name "ntus_strpt". If some of these response values look gibberish to you, don't worry. Just refer to our Geocode Quality Code documentation for more details.

    Internal & Commercial Use

    For many developers, any kind of usage limitation or restriction can be the sole reason that prevents them from using a certain product. In an effort to reduce our own limitations, all users will now have the ability to use their AppKey in BOTH an internal and a production commercial application. A separate key is no longer necessary for this purpose. Also, if you wish to use the MapQuest Services in conjunction with any commercial application that isn't publicly available without charge, please obtain permission first by contacting with a description of your application and your intended distribution channels. Permission is not necessary for use with our Open Services.

    Open Initiatives

    So you may be wondering how this affects our Open Services. Well, absolutely nothing has changed here! Neither a community account nor an AppKey is required for the use of our OpenStreetMap tiles, Nominatim Search, Open Directions, or Open Elevation. However, we encourage developers to at least sign up for an account and take advantage of the resources found on the Open Forums and to ask questions and interact with others. With just a few of the advantages described above, we hope you now have an understanding of what Community Accounts are all about and why we're excited to have finally released this for everyone. In case you haven't noticed, we're also constantly adding new features and services so be sure to check the MapQuest Developer Network often to get the most out of your Community Accounts!
  • Performance Boosts and DevNet Updates

    Performance Boosts

    We recently spent some time doing a bunch of back-end cleanup by removing old code, dead code, defunct code, and what have you. In other words, critical updates that never receive any love! These updates will mostly only affect the Open Directions Service and Open Elevation Service but has led to performance increases for the said services. Also, while the previous restriction to the Open Elevation Service has not been entirely lifted, we did increase the maximum allowed distance to 250 miles (~400 kilometers). You can still make multiple calls to the service however, if you wish to request elevation for a longer route. [caption id="attachment_831" align="alignright" width="180" caption="Newly restructured sidebar"][/caption]

    Developer Network Updates

    One of the main challenges users have had with the MapQuest Developer Network was with navigation. You may have heard about our recent launches of Potlatch 2 or the TIGER Edited Map Viewer, but have had difficulties finding it. Aside from linking it here on our Developer Blog, many of our products and services for our Open Initiatives especially, had remained buried several links deep. This is no longer the case. We've restructured the menu for easier, more intuitive navigation, and added direct links to some of our most popular products on the main page. There's also now a separate OpenStreetMap Tools & Guides section which acts as a one-stop shop for helping both beginners and advanced users with contributing and improving OSM. If you haven't already done so, be sure to check out the Beginner's Guide to OpenStreetMap and the Potlatch 2 Primer. Pass it along to your friends and get them involved (and addicted)!
  • Newest Member of the Open Initiatives: Open Elevation Service

    Maybe you've already heard, but we have yet another major announcement for our Open Initiatives project! The Open Elevation Service now joins the Open Directions Service and Nominatim Search Service as services that are based entirely on open data! I've already talked a bit about the Elevation Service in the past (here and here) and below is another example of an elevation chart and a short summary of the service in case you've forgotten or (gasp!) missed my previous posts: [caption id="attachment_805" align="alignright" width="300" caption="Elevation chart from Vancouver, CN to Seattle, WA"][/caption]
    • Generates an elevation chart in a customizable size
    • Provides elevation profile information (elevation and distance) in JSON or XML formats
    • Distance values returned in miles or kilometers
    • Shape format represented as float pairs or compressed path string with 5 and 6 digits of precision
    So where is the data coming from? The Open Elevation Service is powered by the SRTM V2 data ("finished" version). SRTM (Shuttle Radar Topography Mission) is the international project headed by NASA that helped capture high-resolution topographic data of the Earth. In the U.S., data resolution is approximately 30 meters and 90 meters for the rest of the world. If you need more information, you know where to go - the Developer's Guide! We hope you enjoy the new Open Elevation Service as we continue to roll out new features. As always, go ahead and combine Elevation with the Open Directions Service or Nominatim for the truly Open Experience! Just remember they are all still in Beta and providing feedback can only help improve these services. email: