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ac16
Joined: 04 Jun 2008 Posts: 18
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Posted: Sat Jun 07, 2008 3:40 pm Post subject: Track diagram plans for Glenreigh-Dorrigo line |
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Wanted! one set of gradient and track diagram plans for the Glenreigh-Dorrigo line, also any google earth markers. cheers
Robert
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Mrdriver Site Admin

Joined: 17 May 2008 Posts: 348 Location: Brisbane
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Posted: Sat Jun 07, 2008 4:26 pm Post subject: |
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this may help.
Cheers Russ _________________
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ac16
Joined: 04 Jun 2008 Posts: 18
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Posted: Sat Jun 07, 2008 8:04 pm Post subject: |
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cheers now just have to find google earth markers and im done , apart from laying track etc.
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Mrdriver Site Admin

Joined: 17 May 2008 Posts: 348 Location: Brisbane
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Posted: Sat Jun 07, 2008 8:55 pm Post subject: |
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Do the Google earth markers by tracing the old foundation of the track in google earth.
Its not hard it just takes a bit of study. _________________
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ac16
Joined: 04 Jun 2008 Posts: 18
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Posted: Sat Jun 07, 2008 9:39 pm Post subject: |
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hi, have used google markers on previous layouts but this one disappears after 2 km re appearing 50k later.. most anoying
cheers bob
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Mrdriver Site Admin

Joined: 17 May 2008 Posts: 348 Location: Brisbane
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Posted: Sun Jun 08, 2008 12:43 am Post subject: |
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Hi Bob can you explain this problem in a bit more detail so we can help out.
Markers shouldnt dissapear for 50 kms then come back.
I think there is a numerical limit of markers than can be applied.
Pm me so you can send me the offending mkr file and I will have a look at it.
Cheers Russ _________________
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ShortNorth
Joined: 19 May 2008 Posts: 62 Location: Sunny Brisbane
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Posted: Sun Jun 08, 2008 9:32 am Post subject: |
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| ac16 wrote: |
hi, have used google markers on previous layouts but this one disappears after 2 km re appearing 50k later.. most anoying
cheers bob |
I know what Bob is getting at - I tried doing a marker file for Dorrigo to Glenreagh myself - the main problem is that in Google Earth, in the actual aerial shots of the line, the line totally disappears under the over-grown forest canopy, so it it impossible to trace where the line actually goes. In the open parts of the line it is OK, the lines position can be easily seen, but in the forested areas, which comprise a great majority of the route - no go!!!!!!!!!!
I even tried 'visually scanning' the forest canopy lines from about 2km vertically above to see if I could get the 'lay of the line' - in some places this is a bit clearer, and there are chunks of what is obviously an old railway alignment (by the sweeping curves), but also in many places there are little streams / creeks under the canopy, and from above these tend to merge with the line in places and it confuses the whole image - if you get my drift!!!
This is one very difficult line to 'draw out' of Google Earth - nature's forest growth has almost obliterated the line for most of its length.
I have a 'large scale' map book covering the whole of NSW, but the section from Dorrigo to Glenreagh is only about 75mm across in this map book - it does give a little bit of an idea of how the line was laid relative to roads in the area, but could only be considered a general guide.
I think the only way to get an accurate marker file for this line is to see if you can buy a copy of the relevant Ordnance Survey map(s) for the relevant areas - not exactly sure where you can buy them, but I guess a call to one of the 'map shops' in Sydney would locate one!!!
Regards, Brian
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ac16
Joined: 04 Jun 2008 Posts: 18
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Posted: Sun Jun 08, 2008 10:53 am Post subject: |
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got it in one short north, i have actually done the current GMR fully sceened up to where the current end of the line is. have asked some locals to get me some stuff, apparently there is a arial shot they took that shows the line (in marker) but its too big for them to scan. some one has GIS computer maps which he is sending me.
Regards robert.
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Chris Anderson Moderator

Joined: 19 May 2008 Posts: 74 Location: Five minutes walk from the High Level Bridge
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Posted: Sun Jun 08, 2008 11:59 am Post subject: |
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If you have the time and patience to make a manual marker file and transcribing co-ordinates, the Lands GIS website can be an invaluable tool. Best yet, the track for the Glenreagh-Dorrigo line is present and very easy to see. Combine this with the Google Earth aerial views, it should make your task a bit easier. _________________ Mr Anderson... Surprised to see me?
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superheatedsteam Moderator

Joined: 19 May 2008 Posts: 83 Location: Perth
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Posted: Sun Jun 08, 2008 12:04 pm Post subject: |
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Another way to get marker information is from GPS handsets. The price of these units are coming down and some have the ability to keep a log of position over time. In the case of disused lines a walk or ride over the alignment on a mountain bike would be required.
I was in a similar position were new track work was not visible on google earth. A kind local with such a GPS system traversed the line for me and provided me with the co-ordinates I required.
Regards,
Marek.
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Mrdriver Site Admin

Joined: 17 May 2008 Posts: 348 Location: Brisbane
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Posted: Sun Jun 08, 2008 12:27 pm Post subject: |
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Forgot about the lands GIS site now that is the best alternative as the coorinates are Very accurate if you Zoom right in.
Much more so than Google earth.
But you will have to transcribe all co-ordinates by hand as above.
I know this is a tedious process but I made the southern main this way. _________________
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ARG706
Joined: 19 May 2008 Posts: 114
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Posted: Sun Jun 08, 2008 1:55 pm Post subject: |
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| superheatedsteam wrote: |
Another way to get marker information is from GPS handsets. The price of these units are coming down and some have the ability to keep a log of position over time. In the case of disused lines a walk or ride over the alignment on a mountain bike would be required.
I was in a similar position were new track work was not visible on google earth. A kind local with such a GPS system traversed the line for me and provided me with the co-ordinates I required.
Regards,
Marek. |
How much are talking for one of these?
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superheatedsteam Moderator

Joined: 19 May 2008 Posts: 83 Location: Perth
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ac16
Joined: 04 Jun 2008 Posts: 18
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Posted: Tue Jun 10, 2008 3:19 pm Post subject: |
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hi all,
Next Question where would one find a list of bridge locations on this route.
Regards
Robert.
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xcrosswitch

Joined: 23 Jun 2008 Posts: 12 Location: Adelaide
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Posted: Thu Jun 26, 2008 2:33 am Post subject: |
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Hi Robert,
Are you still interested in a kmz file of the Glenreagh route?
I have a 300 plus marker file of track path if you are interested.
I have road crossings and bridges included.
Cheers,
Rob Kenning
Update: I currently have the Glenreagh to Dorrigo line demed and markered. It looks pretty good at this stage. I placed the markers in Google Earth and used the toporoute.com site to spot the exact track bed. It allows you to alternate between topographic and satellite photo. This results in very accurate marker placement. I have markers set at 300 metre intervals, however, the track has a lot of curvature and very little straight track. It is going to be fun.
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ac16
Joined: 04 Jun 2008 Posts: 18
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Posted: Tue Jul 15, 2008 9:30 pm Post subject: |
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hi that would be great.
so far track has made it up to the 1:30 incline. Have been a bit busy with other things lately but am trying to get back in to it. Just checking rob are you starting another version of the route?
Bob
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xcrosswitch

Joined: 23 Jun 2008 Posts: 12 Location: Adelaide
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Posted: Wed Jul 16, 2008 12:24 am Post subject: |
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Hi Bob,
Sorry for the delay in answering. I had a crack at laying track into a Demed route, I started at the main line branch off and headed past the GMR station then over the Tallawudjah bridge, but laying the track up the hill didn't seem to work for me. I'm glad to hear you made it up the 1:30 grade. I have a backup of the route with no track layed so I will keep playing with it. I am going over to Glenreagh in October, so I am going to see if I can walk the first few kilometres up the track from the Tallawudjah bridge and take a few photos.
I don't intend to try making the route as it is a bit of a mouth full for a first attempt. I'm doing research into the Pt Hedland route at the moment. Even though its a long route, the grades are easier to manage.
PM me if you would like the marker file and the googleEarth KML and KMZ files.
I've also got a copy of the Dorrigo Steam Railway & Museum book. It contains photos of most of the stations, bridges and rolling stock. If you are going ahead with the route, let me know and I'll help out if I can.
Cheers, Rob xcrossfire-at-yahoo dot com
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superheatedsteam Moderator

Joined: 19 May 2008 Posts: 83 Location: Perth
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xcrosswitch

Joined: 23 Jun 2008 Posts: 12 Location: Adelaide
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Posted: Wed Jul 16, 2008 8:22 pm Post subject: |
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I've had a couple of attempts to get up the hill but haven't been happy.
You can see theres a fair old climb up the hill. As mentioned, I'll keep plugging on till I get it right. I had planned to walk the track in October, from Tullawadjuh Bridge to Timbertop, and take a few photos every 100 metres. Last time I was on location, the GMR folks had cleared the track vegetation up to the tunnels. If I can get permission from the society to scope it out, I feel it would make the task of laying track a little easier.
With Hedland I intend to strike out to Mt Newman. I believe its a steady grade rise on the way to Newman.
Cheers, Rob

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ac16
Joined: 04 Jun 2008 Posts: 18
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Posted: Thu Jul 17, 2008 10:09 pm Post subject: |
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some pics of progress to date
 
the forest needs some new terr=textures, any thoughts or constructive critisisams would be great
bob
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