Thanks Mateuz,

That is helpful.

On 16 November 2019 7:27:47 pm AEDT, Mateusz Konieczny 
<[email protected]> wrote:
>Note that CC 4.0 is not significantly helpful, without special waiver
>it is also incompatible with ODBL
>See https://wiki.openstreetmap.org/wiki/Import/ODbL_Compatibility
>
>AFAIK: 
>
>(1) planning survey may be done based on even fully copyrighted data
>without trouble
>(2) data incompatible with ODBL is by definition incompatible with ODBL
>
>Creating notes based on a copyrighted source sounds OK (I am not a
>lawyer!)
>as long as people will not use them more than for planning survey.
>Note that confirming note to be true is not sufficient.
>
>I would suggest notes in form
>"according to an official source on licence incompatible with OSM there
>is a new speed limit here since X"
>to ensure that somebody will not copy copyrighted data by accident or
>due lack of understanding.
>
>Or getting needed waiver, what would make data ODBL compatible.
>
>15 Nov 2019, 21:26 by [email protected]:
>
>> I have since signed up to the service.
>> Clicking on the link in the email takes me to a page on the website,
>which is explicitly CC 4.0. I suspect this means it is OK to manually
>add a note or FIXME requesting resurvey.
>>
>> I don't think that should cause trouble with the ODBL, because you're
>not importing the data.
>>
>> (Open to correction here)
>>
>> Regards,
>> David Wales
>>
>> On 14 November 2019 5:15:07 am AEDT, David Wales
><[email protected]> wrote:
>>
>>> A relevant paragraph from the terms of use:
>>>
>>> "The Service is intended for personal use only. You must not use it
>for business purposes or re-supply the information to others."
>>>
>>> This seems at odds with the CC 4.0 license which the website itself
>is under!
>>>
>>> I suspect you would need to either track down the original data
>source behind the emails, or you would need to contact Transport for
>NSW to get permission. 
>>>
>>> Regards,
>>> David
>>>
>>>
>>>
>>> On 13 November 2019 10:21:58 pm AEDT, Luke Stewart
><[email protected]> wrote:
>>>
>>>> In case you were not aware, there is a bi-monthly service from the
>NSW government advising when and where new speed limits have been
>introduced across the state, allowing us to keep our maxspeeds up to
>date.
>>>>
>>>> https://www.saferroadsnsw.com.au/emailupdates.aspx
>>>>
>>>> I was considering adding a note to the locations that have been
>changed each time the email is sent, but would this count as adding
>non-copyrighted data, even though it would only request a resurvey?
>>>>
>>>> Interested to hear your thoughts,
>>>> Luke
>>>>
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