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Govanus's diary

Recent diary entries

Latest fashions in area highways and the plan for wash common coming soon.

Posted by Govanus on 15 October 2014 in English (English)

I've been a bit more away from osm in the last week than I planned so apologies for those waiting for bit from me. I've not forgotten!

I'm planning to do the whole of wash common's roads in a big stint very soon.

I began in the area before I'd learnt about area highways. so the results became a bit strange (footpaths narrow and road surfaces very wide creating mismatchings and dislocated sidewalk features that tried to join the footpaths. Then when I tried to add area highways using the early area=highway type tagging it fell foul of mentors auto-validator and the "corrections actually messed up in some renders as mentor tagged the with a lot of highway tags to confuse things. The key reason why they weren't suppose to be added in the first place. So I gave up on Wash common for a while to see if mentor would finish the site off, (I had other fish to fry too). But nothing seems to have been added and parts are just looking like a mess so I need to go back and get it done properly.

As area highways and sidewalk tagging seem to have been a moving target to draw with I was going to put a general question out on the help wiki to find out what the consensus is at the moment on this apparently such an awkward feature (most maps I commercially use just use vectors to show edges of things and then the space between the "edges" of the same type become areas or a seeding dot or simplified routing line to carry the pathing logic in a cheap way.

Features I want to look at is:-

Roadscape feature edges: the sides of islands, verges and special contraflow barriers Roadscape surfacing areas: patches of surface treatments from special grip and colour coats (common in the UK the former near problem junctions, and the latter to help highlight use restrictions - through to - major surface material changes (such as a bare concrete busstop or parking bay alongside a tarmac carriageway - or on "sidewalks" the awkward [see wheeled carts etc] patches of cobbling styles at entrances and by certain buildings the interrupt the smoother paving slabs on the rest of the sidewalk. Parking bay areas: some jurisdictions like the ones I map draw very specific boxes on the highway that parking is allowed and nowhere else [for the stretch they cover - however short]. So it would be nice to convey the areas on the highway you could park when doing a area for the featured highway. Lanes areas: These could be special rules spaces like fire lanes in the U.S. or bus, cycle, taxi only lane in the UK and elsewhere. -- or by simple extension defined lanes in the carriageway [often when painted to rules] :: features about lane boundary crossing rule makings could be added on the edges of these if people wanted to add that type of information.

Highway boundaries physical: the limits of landuse dedicated to the highway inclusive of all the features including ditches and verges - solves the strange debate of what to map other landuse areas to when the edge runs alongside the road. Highway boundaries legal: the edge limits of what a highway authority has the power allow the right of passage to the public or to control parking etc isn't always the same thing as the edge of a sidewalk or fence line sometimes neighbouring property places more pavement on the edge of the highway to improve the interface between the site and highway users such outside shops or for private parking. Sometimes these get marked in special ways while others they are only given in landowner to landowner agreements such as rents paid to allow the highway use of parts of private land that is only defined in a contract between the parties and nothing is on the road. Carriageway edges:it might be useful to have a logical way to bond a relationship of lanes or just to map a carriageway without its lanes to start with.

Crossing limits: there can be highly marked areas on some roads where pedestrians (and sometimes bicycles and horses are supposed to cross in. rendering these can improve user comprehension (especially when multipathing is defined (horse and cycle segregation on the crossing)). it may also render well to similar features like bridleways approaching the road.

There seems also a lot of evidence that defining junction space on both carriageways and separately out the highway boundaries is also important for some users the later is often used like a navigating place name especially when roads are not named but the junctions are instead. [look in the wiki for examples about these]

The more to add street furniture already in osm in more precise location becomes easier to like lamps, postboxes, telephone boxes and kiosks.

===

When would this be most relevant? When guiding pedestrians (especially the disabled), parking motorists, and when make entrance maps for flyers and brochures. It also looks good alongside transition to indoor mapping systems at normally smaller scales.

The way to look at it is to stand next to a busy road and think of as not just a road but imagine it was part of a park (as in the green grass urban variety) and to map the complex of features you can find in the roadscape around you.

a god exaple I found was this http://wiki.openstreetmap.org/wiki/Proposed_features/Street_area and this earlier started proposal that takes up were the approach I first adopted left off https://wiki.openstreetmap.org/wiki/Proposed_features/area:highway.

http://wiki.openstreetmap.org/wiki/Proposed_features/Sidewalk_as_separate_way is also useful to show how people are also aproaching the problem. I'm out of time tonight but I may try sending this to the help wiki soon to get some feed back by all those that scour that system.

Location: Newbury CP, Newbury, West Berkshire, South East, England, United Kingdom

last contribution in full.

Posted by Govanus on 6 October 2014 in English (English)

A tough fix to the Kennet centre in Newbury (begun). the offset problem on the structure is quite severe and contributers don't seem to agree on it I picked the roads and mapped the whole thing in one offest setting a lot of features need to be shifted and converted to indoor types. I've pdf's of the new shopping and residentual area to the north but rasteriseing and importing is delay behind other things and not being able to use the latest josm anymore...

note to self

Posted by Govanus on 3 October 2014 in English (English)

full entry for last edit

Posted by Govanus on 3 October 2014 in English (English)

tried to add some sense of features that are in the north west harbour area of gilbraltar and there effect on what seems at least on OSM as a disputed border.I hope I managed to get the relationships right though it would be good for someone with more experiance of these to check it went in the right order.

Location: Winston Churchill Avenue, Gibraltar

todays edit long version

Posted by Govanus on 2 October 2014 in English (English)

assorted detail adds near yeasterdays work. reinstating steadily removed details removed on "stylistic grounds" ok some parralax and offset problems exsisted but they only needed shifting to fit a good alignment. Walter's Row is to have the gates moved to the back the front hedgeing added soon.

links about indoor to self

Posted by Govanus on 1 October 2014 in English (English)

http://wiki.openstreetmap.org/wiki/IndoorOSM

In the areas I work some concentrate on working in large land use polygons but my focus is on more detail so I'll be learning some more of these ideas for indoor mapping (mainly of the many complex buildings in the city).

Access to the internet is still low for me so updates might take a few weeks to put in...

note to self

Posted by Govanus on 25 September 2014 in English (English)

changes to my pavement entries and learning rivers

Posted by Govanus on 21 July 2014 in English (English)

I've found that for a time I've been picking the wrong term for pedestian pavements beside the main carrage way. In normal language i'd call these pavements, but for good and well explaind reasoning OSM decided to call them sidewalkd to avoid international confusion (pavement as a term has different meanings around the world). Knowing that I'd need to pick a differenet term I've been mistakeingly using footway by mistake (footways on some editors convert to footpaths) and I'm also begining question if some of my "Front Garden paths" should be footpaths or even private byways??? the problem is that what is simple to build with paving or a narrow strip of tarmac can be seen in different ways in osm but is physicaly similar and often used also used in very similar way too.

I'm intending to review the tagging I've done on sidewalks in a progressive manner.

I'm also looking at advanced bridge tagging to sort out some issues with some more recent entries. Bridges and rivers can become quite complecated when there is a lot going on like the Magdelen Viaduct/bridge (which has nine arches, 5 "tunnels" placeing places two river courses two-one embankment apontoondock and two sides, {not mentinon the multilane stuctures of the highway running over the top}!!!). I'll get there in the end but it might take some time. I've also been working on find details for the tasked missed off the last task listing and that is utility features like pumpsite and substations......

Current Activity List

Posted by Govanus on 25 June 2014 in English (English)

this is not exsusitive but outlines my work program for OSM:-

Finish adding CAB offical tags for OxCAB Finish suport services missing from OSM needed for CAB mapping such as third-party support and advice services. Add The Regional CAB sites following toward the rest of the organisation...

Compleat the records and relations to all the garages operated by the council in Oxford. as well as neighbouring others.

finish multilayer buildings for buildings at southfiled park and progressing futher out accross the city as suveying is done.[I've had more in notes for a ling time now]

Learn 3dPhoto-survaying to increase accuracy of Southfiled Park features.

Try to develop a decently accurate hight aware suvey technique to add public relm and communial lamps and secuity features across oxford [I done some preservey exploration to the centre of oxford and at southfiled park, hght will be important for the referance number to make sence as a lot are mount high on the side of buildings to avoid haveing poles]

Compleate the NPLG records gathered from lable surveys.[both Oxford City and the Vale of the White horse councils add them in codes on their bins....

compleate the transfer manually of refrances and route codes about railways from official sources like the NESA and line rental matieral [theis is helpful for users of live datafeeds and planning - there also is the issue of details of posaic nameing that passengers use but are different than the rail industry internaly] - Ialso have mapped these three different ways in the past some with some without the use of relations.

Need to review rail tagging especially when addingg the tracks/roads for each line to avoid logical errors being introduced.

Look at trying to expand highway areas [ I note some recetly became deleted and in the past people have not felt happy with how the tags define them [I was originaly working on the proposed standard but others seem to want to cover things differently so the standard went into dispute. the features I hope to work to add will be geting into the sub 1metre locational sensitivity level [wether I can get the coords absolutely accurate {using all technical meanings here} or to some relative approximation {more technical meanings used}] At this level road widths and edge shapes look very significant.

Look at fixing any errors and omisions to Wash Common [see previous work for location]

Look to chip in to work going on in Newbury as well as finaly getting multilevel models translated from pdf to OSM of the new centre of town developments and correting big interpretaion mistakes to the other shopping centres.

Do more work in andover and bradford.

work in Northumbria

fix problems in my previous work that I failed to get good location inputs for mainly from paralax, vegitaion cover, poor resurlution and lighting, and no clear fix points for base picture misalignments . What I fail on posstional accuracy I have hoped to makeup thematicly and with a sence relative layout sence.

Construction sites and other new changes needed.

improving detail like addeding relvent referances, addresses and surfaces etc.

add referance numbers for offical rights of way.

Add 3d data when understood and availble.

map out the parking restictions in oxford and Newbury. including on developing the clausual deffinitions.

develop bosme

various activities overseas

look at adding NUTS and LAU to Europe.

add offical language translations to various sites [such as russion arabic and chinese forms]

add more thangs I notice are missing....

Well thats a lot to work on for a while. So if it looks like I scattering about and leaving nothing finished then its probably competeing for time with these ares with equal urgancies.

-Govanus

edit expanded notes

Posted by Govanus on 25 June 2014 in English (English)

Assorted modifications in Oxford addition at Hilltop rd. Still needs work but to much treeand shadow on bing today.. Addtion of the 2014 urban beach hope it shows up more this time. And the current changes starting today in Brasenose lane including cycle P suspensions

edit expanded notes

Posted by Govanus on 19 June 2014 in English (English)

some homes, fence and wide verge land at the top of morrell Avenue on oxford UK,EU. The accuracy is pushed abit with tree cover paralax Im tring to map to the base of the walls not the roofs remeber. The polygons can be impoved but I have data waiting for them and no one else got around to them yet...

indoor and street gazettering

Posted by Govanus on 12 June 2014 in English (English)

I've been using the indoor: system to Gazetteer flats in blocks either by outline separated with their corresponding layer/level data or just by entrance nodes were outlines are not clear to me yet.

In basic rendering the view is generally ignored unless you have a renderer that knows how to make a building plan in various possible styles from flat to isometric. big map renderers generally gloss over and ignore these but take the data into a spreadsheet or database and it gives a good postal listing like those that Kelley's used to make. As a data user this is more useful for me than say a number range especially when I try to add office or owner data into the Gazetteer which due to it being in osm allows it to be automatically to custom maps. It also helps navigation when the dwellings aren't sequentially numbered which is actually quite common (from both alterations and odd/even splitting schemes as well as say something that tries to combine floor and unit numbers from to separate ranges. The Gazetteer form just cuts though all of this and makes it straightforward and easy to work with automatically

Josm hasn't been so easy to work with for this needing a layer approach workflow to work and the online editors are very difficult to use with stacked features (think of a 40-story block of flats or halls of residence - the baseplan for most floors in the middle are likely to be very similar with most principle doors and loadbearing walls being in the same horizontal place on each one, with just layer/level/ele/height data to split them up). I have been thinking about writing a new editor to make things easier but I've had so much going on recently that I've surveyed a lot more than I've had time to add to osm lately, especially when I have to work in complex way without online editors, to get the data clear and without unwanted clashes of wrongly joined nodes.

Customised units and dwellings with variant layout features are also easy to handle like this.

-- In general Gazetteering is more useful for data users than large-scale mapmakers though interactive maps could highlight the important sub parts or jump into a building layer mode.

I read that is increasing use of osm to work in 3D on the wiki and the like. Describing where the dentist is on the 4th floor on the northern wing corridor, with these is easy this way.

=

In general I am adhering to the principles elsewhere expounded in OSM that: -the information provide and stored should not restricted or specially overly tailored to a specific purpose like a certain rendering engine or flight-sim such that it less useful for other users purposes. -If you don't like the rendering, change the render settings not the data per say, -if the render can't understand the difference between things add more differentiating information to OSM and not just remove things or worse deliberately remove detail such as for ways so they "store better on system x because no one renders under [arbitrary] zoom level y"!

It can be tough but it helps to make a general-purpose data set that can be used by so many people in different ways.

Location: Florence Park, United Kingdom

load ref

Posted by Govanus on 28 May 2014 in English (English)

A useful set of slides explaining things about UPRN

Posted by Govanus on 10 May 2014 in English (English)

This is a link to a useful set of slides about how UPRN workthough the lifecyle of buildings and the agencies that get involved:

http://www.iahub.net/docs/1382088413044.pdf.

Remember old UPRN's never die they just get a cross-referance!

rececent change to parking tags

Posted by Govanus on 22 April 2014 in English (English)

revising mainly parking restictions. mentor prevously updateed the tags to parking lane routes but this along with illegal parking problems is likely to confuse, so removed it all to lok at more appropriate parking lableing. If parking at the side of a garage road you create a blockage problem either for turning vehicals on one side or blocking a garage door on the other. were garages face each other both sides block doors. The police have already athorised garage owners that they can leagaly tow or dispose of vihicals in front of the doors without any warning. The areas are laid to allow 24hr access for large vehicals to the garages. if now used in a storage mode then it is only a loading stop that can be made and you need to be ready to move out of the way. vandalisum and rouge parking has dammaged some low walls and signs and illegal parking followed. originaly parking on the main road on the estate was also banned but recently this began to be increasingly ignored by residents not wanting to pay for garages so now a large parking scheme has been introduced but not on the garage lands as they are private and not adopted highways. I'll need to rethink the original tagging as I suspect the original is likely to be mass retagged again without local knowledge if I just revet it back to private like a houses drive

osm text yet to be done completed and a quick method to add direct from text

Posted by Govanus on 13 March 2014 in English (English)

I have a couple of files in osm xml format I'm struggleing to find time to finish quickly and given thier stacking node nature they are tough to put up in stages. Some need polygon alignment but incase someone whats a preview I'll try to upload some of the small ones here:- <?xml version='1.0' encoding='UTF-8'?> <?xml version='1.0' encoding='UTF-8'?> <?xml version='1.0' encoding='UTF-8'?> <?xml version='1.0' encoding='UTF-8'?> <?xml version='1.0' encoding='UTF-8'?> <?xml version='1.0' encoding='UTF-8'?>

Location: New Marston, Oxford, Oxfordshire, South East, England, United Kingdom

longcross

Posted by Govanus on 13 March 2014 in English (English)

some features at long cross. Site was a contry house and grounds then taken over by the milatary in later years used to test milatary vehicals before being used in closed rally sections and then sold to a film company. site had a golf course developed on in nr the fine original house probably by the army? there are a lot of stuctures for testing vehicals like tanks and lorries.

area still has unmapped features

I had another upload crash afewvhours back

Posted by Govanus on 18 February 2014 in English (English)

I upload about 23 simple changes to new house ways and after a long wait recieved the upload servers html error.

after a few attemps I' had to abandon the data and turn off for leaving all changes will need to be redone some time in the future.

Fixed railway land at Oxford that had corrupted nodes uploaded

Posted by Govanus on 17 February 2014 in English (English)

This land is loosely the land owned by Railway bodies like BRRB and NR. The BRRB section in the south near the Royal Mail office is being prepared for possible redevelopment, so the tags tried to reflect recent changes. The rail line was taken up in the last couple of years as part of the sale preparation process.

This is a really helpful looking document for working with addresses

Posted by Govanus on 14 February 2014 in English (English)

http://www.nlpg.org.uk/documents/LLPG_SNN_best_practice_v2.pdf

It covers UK numbering for flats and split use buildings and all the other special things that crop up.

It is used by parts of the goverment to do the same process that we do when adding addresses on OSM when they put them into thier databases.

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