topic Re: Calculating network distance in meters when working in decimal degrees in ArcGIS Network Analyst Questions https://community.esri.com/t5/arcgis-network-analyst-questions/calculating-network-distance-in-meters-when/m-p/153436#M1558 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Hi All,<BR /><BR />Some time ago I managed to set up a network that is calculating network distance in meters, when I am working in a map file and from a source geodatabase that are both in decimal degrees.&nbsp;&nbsp;&nbsp;&nbsp; I have manually measured road distance in a sample of calculated lengths and it seems quite accurate.&nbsp; I am working on a national Australian data set so don't want to have to change to projected data if I can possibly help it.<BR /><BR />Now I can't for the life of me work out how I did it in order to replicate it with a new network.&nbsp;&nbsp; I've tried all combinations of attribute setting to try and do it but all my street network paths in OD matrices and closest facility calculations are coming out in decimal degrees.&nbsp; I am sure I am doing something fundamentally stupid but can't work out what.<BR /><BR />My original network that is calculating fine in metres is somehow managing to do it off the shapefile length which is in decimal degrees. <BR /><BR />I know its generally regarded as highly unprofessional to grovel, but if any of you NA fanatics out there can help, please do so before I go absolutely, completely, irretrievably insane. (beg, plead, grovel ... )<BR /><BR />Cheers -<BR /><BR />Ali</BLOCKQUOTE><BR /><SPAN> </SPAN><BR /><SPAN>Ali, I know exactly how you feel.&nbsp; I will soon be bald due to pulling out my hair because of ArcGIS</SPAN></BODY></HTML> Thu, 03 Mar 2011 14:28:33 GMT BarryDurand 2011-03-03T14:28:33Z Calculating network distance in meters when working in decimal degrees https://community.esri.com/t5/arcgis-network-analyst-questions/calculating-network-distance-in-meters-when/m-p/153434#M1556 <HTML><HEAD></HEAD><BODY><SPAN>Hi All,</SPAN><BR /><BR /><SPAN>Some time ago I managed to set up a network that is calculating network distance in meters, when I am working in a map file and from a source geodatabase that are both in decimal degrees.&nbsp;&nbsp;&nbsp;&nbsp; I have manually measured road distance in a sample of calculated lengths and it seems quite accurate.&nbsp; I am working on a national Australian data set so don't want to have to change to projected data if I can possibly help it.</SPAN><BR /><BR /><SPAN>Now I can't for the life of me work out how I did it in order to replicate it with a new network.&nbsp;&nbsp; I've tried all combinations of attribute setting to try and do it but all my street network paths in OD matrices and closest facility calculations are coming out in decimal degrees.&nbsp; I am sure I am doing something fundamentally stupid but can't work out what.</SPAN><BR /><BR /><SPAN>My original network that is calculating fine in metres is somehow managing to do it off the shapefile length which is in decimal degrees. </SPAN><BR /><BR /><SPAN>I know its generally regarded as highly unprofessional to grovel, but if any of you NA fanatics out there can help, please do so before I go absolutely, completely, irretrievably insane. (beg, plead, grovel ... )</SPAN><BR /><BR /><SPAN>Cheers -</SPAN><BR /><BR /><SPAN>Ali</SPAN></BODY></HTML> Wed, 23 Feb 2011 03:24:20 GMT https://community.esri.com/t5/arcgis-network-analyst-questions/calculating-network-distance-in-meters-when/m-p/153434#M1556 AlisonBarr 2011-02-23T03:24:20Z Re: Calculating network distance in meters when working in decimal degrees https://community.esri.com/t5/arcgis-network-analyst-questions/calculating-network-distance-in-meters-when/m-p/153435#M1557 <HTML><HEAD></HEAD><BODY><SPAN>So simple.&nbsp; Aaah!</SPAN><BR /><BR /><SPAN>You are a star Alan.&nbsp; Thanks for your help and have a great day.</SPAN><BR /><BR /><SPAN>Cheers -</SPAN><BR /><BR /><SPAN>Ali</SPAN></BODY></HTML> Wed, 23 Feb 2011 22:19:05 GMT https://community.esri.com/t5/arcgis-network-analyst-questions/calculating-network-distance-in-meters-when/m-p/153435#M1557 AlisonBarr 2011-02-23T22:19:05Z Re: Calculating network distance in meters when working in decimal degrees https://community.esri.com/t5/arcgis-network-analyst-questions/calculating-network-distance-in-meters-when/m-p/153436#M1558 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Hi All,<BR /><BR />Some time ago I managed to set up a network that is calculating network distance in meters, when I am working in a map file and from a source geodatabase that are both in decimal degrees.&nbsp;&nbsp;&nbsp;&nbsp; I have manually measured road distance in a sample of calculated lengths and it seems quite accurate.&nbsp; I am working on a national Australian data set so don't want to have to change to projected data if I can possibly help it.<BR /><BR />Now I can't for the life of me work out how I did it in order to replicate it with a new network.&nbsp;&nbsp; I've tried all combinations of attribute setting to try and do it but all my street network paths in OD matrices and closest facility calculations are coming out in decimal degrees.&nbsp; I am sure I am doing something fundamentally stupid but can't work out what.<BR /><BR />My original network that is calculating fine in metres is somehow managing to do it off the shapefile length which is in decimal degrees. <BR /><BR />I know its generally regarded as highly unprofessional to grovel, but if any of you NA fanatics out there can help, please do so before I go absolutely, completely, irretrievably insane. (beg, plead, grovel ... )<BR /><BR />Cheers -<BR /><BR />Ali</BLOCKQUOTE><BR /><SPAN> </SPAN><BR /><SPAN>Ali, I know exactly how you feel.&nbsp; I will soon be bald due to pulling out my hair because of ArcGIS</SPAN></BODY></HTML> Thu, 03 Mar 2011 14:28:33 GMT https://community.esri.com/t5/arcgis-network-analyst-questions/calculating-network-distance-in-meters-when/m-p/153436#M1558 BarryDurand 2011-03-03T14:28:33Z