<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:142629037;
mso-list-type:hybrid;
mso-list-template-ids:1523372096 201916417 201916419 201916421 201916417 201916419 201916421 201916417 201916419 201916421;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Symbol;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:"Courier New";}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-18.0pt;
font-family:Wingdings;}
ol
{margin-bottom:0cm;}
ul
{margin-bottom:0cm;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>This query was triggered by the following comment in another thread, but I’ll start a new thread so as not to distract the original.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>“ ’Don't split ways if there is no physical separation’ is one of the core tenets of highway mapping in OSM.”<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My query is about how to correctly map an intersection in Perth while abiding by the above. I will try to describe the situation as best I can without being able to resort to a sketch:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>- there is a junction between 2 major highways in Perth (Roe & Tonkin Highways)<o:p></o:p></p><p class=MsoNormal>- there is a slip road off one (Roe heading west) that merges with the 2 lanes of the other (Tonkin heading south)<o:p></o:p></p><p class=MsoNormal>- from the merge point there are 3 lanes (the slip lane + the 2 through lanes)<o:p></o:p></p><p class=MsoNormal>- from the merge point, there is no physical barrier down to the traffic lights at the next intersection (Hale Rd - which is quite close – hundreds of metres)<o:p></o:p></p><p class=MsoNormal>- however there is a solid white line between the slip lane and the 2 continuing lanes – right to the next intersection<o:p></o:p></p><p class=MsoNormal>- this means you cannot legally come off the slip lane and turn right at the next intersection (Hale Rd) because you cannot legally cross the solid white line<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>This has currently been mapped “as normal”, ie 1 slip lane joining a 2 lane road, becoming 3 lanes after the merge point.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Other than maintaining the slip road as a separate way right to the next intersection (with a no right turn), how else would this be mapped so people coming off the slip road cannot turn right at the next intersection?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ian<o:p></o:p></p></div></body></html>