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<b><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></b></p>
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<b><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">1<o:p></o:p></span></b></p>
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<span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">Full Access Control<o:p></o:p></span></p>
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<span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">Preference given to through traffic movements by providing interchanges with selected public roads, and by prohibiting crossing at-grade and direct driveway connections (i.e., limited
access to the facility).<o:p></o:p></span></p>
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<b><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">2<o:p></o:p></span></b></p>
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<span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">Partial Access Control<o:p></o:p></span></p>
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<span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">Preference given to through traffic movement. In addition to interchanges, there may be some crossings at-grade with public roads, but, direct private driveway connections have been minimized
through the use of frontage roads or other local access restrictions. Control of curb cuts is not access control.<o:p></o:p></span></p>
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<b><span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">3<o:p></o:p></span></b></p>
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<span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">No Access Control<o:p></o:p></span></p>
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<span style="font-size:9.5pt;font-family:"Arial",sans-serif;color:black">No degree of access control exists (i.e., full access to the facility is permitted).<o:p></o:p></span></p>
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<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">This is what we use to define Access Control in HPMS. It is standardized across all State DOTs but it is somewhat subjective.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-----Original Message-----<br>
From: Paul Johnson <baloo@ursamundi.org> <br>
Sent: Thursday, May 6, 2021 4:23 PM<br>
To: Zeke Farwell <ezekielf@gmail.com><br>
Cc: Minh Nguyen <minh@nguyen.cincinnati.oh.us>; talk-us <talk-us@openstreetmap.org><br>
Subject: Re: [Talk-us] US Trunk road tagging</p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">CAUTION: This email originated from outside of the Department of Transportation (DOT). Do not click on links or open attachments unless you recognize the sender and know the content is safe.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">On Thu, May 6, 2021 at 3:04 PM Zeke Farwell <<a href="mailto:ezekielf@gmail.com"><span style="color:windowtext;text-decoration:none">ezekielf@gmail.com</span></a>> wrote:<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">> On Thu, May 6, 2021, 3:25 PM Minh Nguyen <<a href="mailto:minh@nguyen.cincinnati.oh.us"><span style="color:windowtext;text-decoration:none">minh@nguyen.cincinnati.oh.us</span></a>> wrote:<o:p></o:p></p>
<p class="MsoPlainText">>><o:p> </o:p></p>
<p class="MsoPlainText">>><o:p> </o:p></p>
<p class="MsoPlainText">>> In traffic engineering jargon, "freeway" refers to a <o:p>
</o:p></p>
<p class="MsoPlainText">>> controlled-access divided highway, while "expressway" refers to a
<o:p></o:p></p>
<p class="MsoPlainText">>> limited-access divided highway or sometimes a controlled-access
<o:p></o:p></p>
<p class="MsoPlainText">>> undivided highway ("super two").<o:p></o:p></p>
<p class="MsoPlainText">><o:p> </o:p></p>
<p class="MsoPlainText">> Minh, can you further explain the distinction between "limited-access" and "controlled-access"? To me these terms seem synonymous.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Wikipedia has the best explanation that doesn't get too deep in the weeds. Suffice to say controlled access would be what we tag as highway=motorway, with the exception that controlled access roads by definition cannot end or have at-grade
intersections, and anyone suggesting highway=motorway should match that gets shouted down here.<o:p></o:p></p>
<p class="MsoPlainText"><a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FControlled-access_highway&data=04%7C01%7Cthomas.roff%40dot.gov%7C61f6061dd09d47d5b99708d910cd1f8a%7Cc4cd245b44f04395a1aa3848d258f78b%7C0%7C0%7C637559295567807629%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=nttd7pt0wawet0m%2F9kRkyjQS4YadwKqDzeBIyylEWrk%3D&reserved=0"><span style="color:windowtext;text-decoration:none">https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FControlled-access_highway&data=04%7C01%7Cthomas.roff%40dot.gov%7C61f6061dd09d47d5b99708d910cd1f8a%7Cc4cd245b44f04395a1aa3848d258f78b%7C0%7C0%7C637559295567807629%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=nttd7pt0wawet0m%2F9kRkyjQS4YadwKqDzeBIyylEWrk%3D&reserved=0</span></a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Limited access is a bit more broad and also includes things like bicycle freeways.
<a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FLimited-access_road&data=04%7C01%7Cthomas.roff%40dot.gov%7C61f6061dd09d47d5b99708d910cd1f8a%7Cc4cd245b44f04395a1aa3848d258f78b%7C0%7C0%7C637559295567807629%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=CXJwqB90i3drwHMBtGNxL7hcNBqEFc1%2FZ5PihILGphA%3D&reserved=0">
<span style="color:windowtext;text-decoration:none">https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FLimited-access_road&data=04%7C01%7Cthomas.roff%40dot.gov%7C61f6061dd09d47d5b99708d910cd1f8a%7Cc4cd245b44f04395a1aa3848d258f78b%7C0%7C0%7C637559295567807629%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=CXJwqB90i3drwHMBtGNxL7hcNBqEFc1%2FZ5PihILGphA%3D&reserved=0</span></a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">_______________________________________________<o:p></o:p></p>
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