The link is public, but the use of the data might not be. Can you please contact them and ask them is it is allowed to use their camera information in OSM?

On their website there are some restrictions stated:
https://ctroads.org/termsandconditions

"Copyright Notice – Copyright and other relevant intellectual property rights exist on all content relating to ctroads.org’s services and the full content of this website. ctroads.org, including all content, is protected by American and worldwide copyright laws and treaty provisions. You agree to comply with all copyright laws worldwide in your use of this website and to prevent any unauthorized use of the content."

"... however, that you may not, directly or indirectly:
....
Sell, reproduce, modify or attempt to modify the content in any way or reproduce or publicly display, perform, or distribute or otherwise use the content for any personal, public or commercial purpose, including without limitation use of the content on any other website;
....
Use any robot, spider or other similar kind of automatic program or device, or manual process to monitor, copy, summarize, or otherwise extract information from this website;"

"A link may be established to the following home page of this website: http://www.ctroads.org Links may not be established to any other pages on this website without ctroads.org’s prior written permission."