[gpl_list] Comments regarding the recent DOT Transportation Layer (UNCLASSIFIED)

[Hill, Kenneth B Mr CIV US NG]

Classification: UNCLASSIFIED
Caveats: NONE

I also noticed that in the rest service and the downloadable data sets there
are lots of municipal city streets missing. No Redmond, Bend, Portland
surface streets. But there are surface streets in other places like Salem,
Keiser, Woodburn, Brooks etc. I thought it would be a complete streets layer
like navtec? Are there holes in the data or am I completely missing something
here?


Kenneth Hill
GIS Analyst
Installations Division
Oregon Military Dept.
Oregon National Guard
1776 Militia Way
Salem OR 97309
503-584-3599
541-602-1130 (cell)


 

-----Original Message-----
From: gpl_list-bounces at listsmart.osl.state.or.us
[mailto:gpl_list-bounces at listsmart.osl.state.or.us] On Behalf Of HILL Milton
E * EISPD GEO
Sent: Thursday, July 12, 2012 9:15 AM
To: 'gpl_list at listsmart.osl.state.or.us'
Subject: [gpl_list] Comments regarding the recent DOT Transportation Layer

>From Dorothy:

 

 

--- Milt

 

From: Dorothy Mortenson [mailto:dorothy.c.mortenson at state.or.us] 
Sent: Thursday, July 12, 2012 9:13 AM
To: HILL Milton E * EISPD GEO
Subject: FW: Comments regarding the recent DOT Transportation Layer

 

Milt,

Can you send this to the GPL? I do not have permission to send and Bob is out
for a couple of weeks. Thank you.

Dorothy

-----------------------------------------------

 

 

I have taken a closer look at the transportation rest service:

http://navigator.state.or.us/ArcGIS/rest/services/Framework/Trans_GeneralMap/
MapServer
<blockedhttp://navigator.state.or.us/ArcGIS/rest/services/Framework/Trans_Gen
eralMap/MapServer>  

 

I have compared it to the USGS transportation layer that was used for the
recently published topographic maps:

http://services.nationalmap.gov/ArcGIS/rest/services/transportation/MapServer
<blockedhttp://services.nationalmap.gov/ArcGIS/rest/services/transportation/M
apServer> 

 

Comments:

1) In comparing the two in ArcMap, USGS wins in that:

* The grouping of layers is done very well in the USGS version, with the
ability to turn different layers on and off (interstate, county roads, etc.
and their respective labels).

* It appears to be more complete.  I found that when I zoomed in, there were
connecting roads missing, whereas they are filled in and seamless in USGS. An
example is attached.

* The documentation is pretty good, tho could stand for a little improvement.

* The railroads are much cleaner, tho maybe not as technically correct. USGS
wins cartographically; ODOT might be a good choice for query analysis.

 

2) Both could use a "light" and "dark" version, depending on what the
background will be. 

 

3) I believe the ODOT version is missing the mark cartographically at the
statewide level, but could be greatly improved if it used a similar strategy
as the USGS as far as how the layers are broken out. The symbology for the
Highway Network theme and the Signed Routes are a little too bold to be used
with anything else. As a guide, look at any of the Street Map services.   

 

 

I have not looked at the downloadable data yet.

 

Dorothy

 

 

 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ><(((('> 

Dorothy Mortenson

Oregon Water Resources Department

(503)986-0857

 


Classification: UNCLASSIFIED
Caveats: NONE