[gps-talkusers] Re: Accessible GPS app question
- From: Justin Hull <justinhull1@xxxxxxxx>
- To: "gps-talkusers@xxxxxxxxxxxxx" <gps-talkusers@xxxxxxxxxxxxx>
- Date: Tue, 23 Jul 2013 19:47:05 -0600
Hello Charles,
I appreciate the response. So why is it that Siri Maps is able to do it
considering they used tom-tom just like the Seeing Eye application?
Thank you
Have a great day.
Justin Hull
On Jul 23, 2013, at 5:39 PM, "Wendy Poth" <wendy.poth@xxxxxxxxx> wrote:
> Oh I knew last I had to biased her. She is loving the balcony. How are you?
> You riding?
>
>
> Sent from my iPhone
>
> On Jul 23, 2013, at 2:22 PM, "Charles LaPierre" <charles@xxxxxxxxxxxxxxxx>
> wrote:
>
>> Hello Justin,
>> The short answer is those addresses are geocoded and act like points of
>> interest for every house number. Traditionally map companies like TomTom
>> and NavTeq took the approach that the addresses on a given block ranged from
>> 100-199 and it was up to the software to figure out that if you were 1/4th
>> the way down the street you were probably near 125. But a geocoded address
>> at 1/4th the way down the street maybe 105 since the buildings are very
>> large and don't go sequentially down the street. Hence the discrepancy.
>>
>> The long answer, most if not all map providers are now scrambling to catch
>> up and replace their interpolated address ranges for a block with exact
>> geocoded addresses, but this costs a lot of money not to mention a lot of
>> extra memory. It's really easy to say that this block goes from 100-200,
>> but takes up 100 times the amount of data to actually have a lat/lon for
>> every house along that street. Most map providers charge a premium to get
>> this point address information. Google and others have put in massive data
>> collection by driving every street in the USA collecting this data, and it
>> doesn't come cheap. Sure they will implement their own map product with
>> this highly accurate geocoded address data, to convince others to switch
>> from a certain phone or software to use their own, and will charge others a
>> lot to use this data. The data is there or is getting there, but the trick
>> now is getting access to this data for a reasonable price and in a format we
>> can easily use.
>>
>> Hope this helps.
>>
>> Charles LaPierre, CTO Sendero Group
>> Developers of accessible GPS and distributors of technology for the blind
>>
>> Office Phone: 888-757-6810
>> Email: Charles@xxxxxxxxxxxxxxxx
>> Sendero web: http://www.senderogroup.com
>> General GPS Web: http://www.AccessibleGPS.com
>>
>>
>> -----Original Message-----
>> From: gps-talkusers-bounce@xxxxxxxxxxxxx
>> [mailto:gps-talkusers-bounce@xxxxxxxxxxxxx] On Behalf Of Justin Hull
>> Sent: Tuesday, July 23, 2013 11:21 AM
>> To: gps-talkusers@xxxxxxxxxxxxx
>> Subject: [gps-talkusers] Re: Accessible GPS app question
>>
>> Hello,
>> I have a fairly technical question. I have noticed that on Siri maps it will
>> give me my exact location up to and including the exact street number of the
>> address where I'm stationed at. Does anyone know why using nearby explore
>> or the Seeing Eye GPS application the addresses are about half a block off
>> and do not give you the exact address location?
>>
>> Thank you
>> Have a great day.
>> Justin Hull
>>
>> On Jul 23, 2013, at 12:03 PM, "Christian" <christian08@xxxxxxxxxx> wrote:
>>
>>> Hi all,
>>> I have just joined this list and I look forward of hearing about new
>> things here.
>>> I have a Trekker Breeze GPS, but I have found that there are many
>> addresses that it can't find and street numbers cant be found either, even
>> if the address has been around for many years.
>>> So, the map data is not that all good so I have had to create many
>> favorites.
>>> I am using Android as my main mobile platform and I have been trying
>> Google maps and and app called Walkytalky to get information on the street I
>> am currently passing.
>>> And the maps are far better than the maps on the Breeze!
>>> But, now, to my question.
>>> Does anyone know of any app that might be worth looking at and that will
>> work outside of the states?
>>> Many thanks for any help,
>>> Christian
>>>
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