Transportation Layers

Track Centrelines - spatial representation of DOC managed track centrelines. Data shows actively managed open tracks. Closed tracks are not shown.

Extensively updated, improved and value-added road center lines originally based on LINZ data. NZ Open GPS Maps nzopengps.org/ is an open source project so contributions and feedback are welcome at gwprojects.org/forum.

The maps are constantly being updated. If you want the very latest data you can follow the instructions on this page to make your own shape files: gwprojects.org/forum/viewtopic.php?f=3&t=348

A lot of the additional attributes to do with routing come through from the original data source in Polish Format (.mp). GPSMapEdit is the definitive program used to edit this format: www.geopainting.com/en/

Speed limit

• 0 = 5km/h
  
• 1 = 20km/h
  
• 2 = 40km/h
  
• 3 = 60km/h
  
• 4 = 80km/h
  
• 5 = 100km/h
  
• 6 = 110km/h
  
• 7 = no limit
  

Route Class

• 0 = Residential
  
• 1 = Collector
  
• 2 = Arterial
  
• 3 = Principal HW
  
• 4 = Major HW
  

The speed limit attribute does not refer to legal speed limits. It may be interpreted as an attempt at capturing the ‘actual’ speed a car would travel on a given road, but actually relates to the routing systems used by in-car GPS units so that trip-routing is optimised. For example, a road with speed bumps may be classified as having a speed attribute of 1 (20km/h) so that it is distinct from adjacent roads of category 2 or 3 (40km/h and 60km/h, respectively), even if these are not the legal speed limits for these sections of the road network.

Note that for the majority of residential streets in major cities, roads are classified as 2 (40km/h). If an accurate representation of speed is your intention (rather than solving computationally-simplified routing problems), interpreting 2 as being 50km/h can give a more realistic picture of the road network. An important exception to this is Wellington/Hutt Valley, where most roads are given the attribute 3 (60km/hr) where they are mostly 50km/h legally.

There are some legacy issues with the speed attribute, with many roads being populated with attributes en masse some time ago, and have not been updated since. There is also the possibility of inconsistencies in the assignment of speed limit attributes between regions for the same type of roads.

The roadclass attribute is similar to the speed limit attribute, but is intended for limited-performance GPS units that would not be able to determine the most appropriate route if considering the more realistic speed attributes. It might solve a routing problem with a marginally shorter route (avoiding, say, a highway) as the nominal speed would be the same, although intersections and other characteristics of the route would actually make it less favourable. A GPS unit using roadclass to solve a routing problem will attempt to find a ‘backbone’ of high-order routeclass, and only use lower-priority roads to get to and from this backbone. In a GIS, routeclass may be appropriate to use in order to solve a large number of network problems more quickly than using the speed attribute. Given that this attribute has fewer categories than the speed limit attribute, it also makes for excellent visualisation of the road network that could be used in map outputs even if the underlying attributes are neglected in favour of speed.

LINZ Data Service
Up to date data from Land Information New Zealand is available for free from the LINZ Data Service. Visit the LINZ Data Service for the latest version of this layer: data.linz.govt.nz/layer/329

Road centreline layer from the LINZ 1:50,000 NZTopo database.

Definition: Any formed all weather route suitable for the passage of any vehicle.

IMPORTANT NOTE: Contains data sourced from Land Information New Zealand. Crown Copyright reserved. Land Information New Zealand gives no warranty in relation to the data, including its accuracy, reliability and suitability and accepts no liability whatsoever in relation to any loss, damage or other costs relating to the use of any data, any compilations, derivative works or modifications of the data.

This data contains mileposts on state owned highways. Milepost_2007 depicts the actual physical location of the milepost paddles as determined by highway inventory.

Purpose

This GIS base layer can be used for planning purposes and as a reference layer on standard Oregon Department of Transportation (ODOT) city and county map formats.

Lines representing kerb lines, edge of seal and traffic islands over urban Wellington including Makara Beach and Makara Village. Captured in 1996 and updated in 1998, 1999, 2002, 2006, 2009, 2011 and 2012 in conjunction with aerial photography refly projects.

The FDOT GIS Toll Roads feature class provides spatial information on Florida Toll Roads, including Florida's Turnpike, Alligator Alley, Beeline Expressway, etc.

Source: www.dot.state.fl.us/planning/statistics/gis/road.s...

This product has been compiled from the most accurate source data from the Florida Department of Transportation's Transportation Statistics Office. However, this product is for reference purposes only and is not to be construed as a legal document or survey instrument. Any reliance on the information contained herein is at the user's own risk. The Florida Department of Transportation assumes no responsibility for any use of the information contained herein or any loss resulting therefrom.

LINZ Data Service
Up to date data from Land Information New Zealand is available for free from the LINZ Data Service. Visit the LINZ Data Service for the latest version of this layer: data.linz.govt.nz/layer/333

Runways layer from the LINZ 1:50,000 NZTopo database.

Definition: The usable surface where aircraft land and take-off.

Related:

• NZ Airports
  

IMPORTANT NOTE: Contains data sourced from Land Information New Zealand. Crown Copyright reserved. Land Information New Zealand gives no warranty in relation to the data, including its accuracy, reliability and suitability and accepts no liability whatsoever in relation to any loss, damage or other costs relating to the use of any data, any compilations, derivative works or modifications of the data.

LINZ Data Service
Up to date data from Land Information New Zealand is available for free from the LINZ Data Service. Visit the LINZ Data Service for the latest version of this layer: data.linz.govt.nz/layer/364

Vehicle and walking tracks layer from the LINZ digital topographic data.

Definition: A deliberately formed route of a lesser quality than a road.

Vehicle tracks are defined as all weather routes suitable for four-wheeled vehicles. Foot tracks are defined as formed tracks for the purpose of moving foot traffic.

IMPORTANT NOTE: Contains data sourced from Land Information New Zealand. Crown Copyright reserved. Land Information New Zealand gives no warranty in relation to the data, including its accuracy, reliability and suitability and accepts no liability whatsoever in relation to any loss, damage or other costs relating to the use of any data, any compilations, derivative works or modifications of the data.

LINZ Data Service
Up to date data from Land Information New Zealand is available for free from the LINZ Data Service. Visit the LINZ Data Service for the latest version of this layer: data.linz.govt.nz/layer/319

Railway tracks from the LINZ digital topographic data.

Definition: A permanent way having one or more rails which provides a track for trains or trams.

IMPORTANT NOTE: Contains data sourced from Land Information New Zealand. Crown Copyright reserved. Land Information New Zealand gives no warranty in relation to the data, including its accuracy, reliability and suitability and accepts no liability whatsoever in relation to any loss, damage or other costs relating to the use of any data, any compilations, derivative works or modifications of the data.

LINZ Data Service
Up to date data from Land Information New Zealand is available for free from the LINZ Data Service. Visit the LINZ Data Service for the latest version of this layer: data.linz.govt.nz/layer/241

Boat ramp centrelines layer from the LINZ digital topographic data.

Definition: A place for launching or retrieving boats from the water.

IMPORTANT NOTE: Contains data sourced from Land Information New Zealand. Crown Copyright reserved. Land Information New Zealand gives no warranty in relation to the data, including its accuracy, reliability and suitability and accepts no liability whatsoever in relation to any loss, damage or other costs relating to the use of any data, any compilations, derivative works or modifications of the data.