OpenStreetMap logo OpenStreetMap

Diary Entries in English

Recent diary entries

Posted by SomeoneElse on 29 November 2025 in English. Last updated on 1 February 2026.

New values in map legend

I look after a map style that’s designed to show rural pedestrian-focused information (hiking routes etc.). It natively supports zoom levels up to raster 24 and vector 26 (which is equivalent to raster 27), which means that small things like fire hydrants and manholes can be shown at high zooms without getting in the way of everything else. The raster and vector versions differ slightly, partly for technological restrictions (finding out “which routes this guidepost is part of” is easier on vector than raster).

A big question, though, is how do I find out what is missing? The styles evolved from an overlay for the the OSM Carto raster style in 2014 and have been added to ever since. However, the things that people map in OSM has increased a lot in that time. Sometimes I spot something obvious that’s missing, but how do I make sure that I haven’t ignored some relatively high-usage and important tag?

See full entry

Location: Thomondtown, Fingal, County Dublin, Leinster, K45 FV38, Ireland
Posted by b-unicycling on 29 November 2025 in English.

As usual, I don’t remember what site got me interested in the topic, but here we are anyways.

What are mounting blocks?

They are raised platforms or sometimes even flights of several steps used to mount and dismount horses, carriages, and I believe maybe also to load luggage onto the roof of a carriage. This helps short people or people with other physical restrictions (back in the day women trying to ride their horses side saddle in dresses) to enjoy horse riding. In the UK, for example, they are protected structures. In Ireland, they are not, and I have not searched further than that.

Where can I find mounting blocks?

See full entry

Posted by Mappme7 on 25 November 2025 in English.

Hello. I created this account for one reason: to plead with the creators to delete this software’s source code entirely. Its existence is an affront to humanity. If we erase every trace of it. pretend it was never even conceived. we might still spare countless people by guiding them toward software that actually includes speed limits, speed cameras, and school-zone warnings. That future would be far brighter than the one built on a map this catastrophically useless.

Example of uselessness:

https://i.imgur.com/camYrY1.png

That’s just a left turn, btw.

Posted by pussreboots on 24 November 2025 in English.

Fairview is comprised of smaller former real estate ventures. When a new area was built it was given a name by its developers. I am slowly researching those development names and adding them to OSM as I go. My neighborhood, for example, was called Hill-N-Dale. Tonight I’m working on Hayward Heights, which still displays its sign where it branches off from East Avenue.

Location: Fairview, Alameda County, California, 94542, United States
Posted by AbstractGeo on 23 November 2025 in English.

Not a lot to say, other than “I’m glad to be starting!” I set up the following in my profile, which seemed as good a place to start as any:

Overview

GIS amateur in rural Maine, United States

Introduction

Hi there! I’m Geo, and I’m thrilled to contribute to public GIS data & resources! I’ve been editing Wikipedia since 2005, but despite registering in 2008, I’ve only started editing OSM in late 2025!

I can bring local knowledge from my area of Maine - Waldo County - and possibly more.

Posted by giopera on 23 November 2025 in English.

Recently I’ve made some logos for the Italian community (osm.wiki/Logos#in_Italy) and today I want to tell you how to I make this logos.

The first step is always to analyze what data do I need to represent and research how to get it, the https://osm-boundaries.com/ has been helpful to get this data and to get a first imprint of how the border is.

I usually download the data in an OSM format and then I use the ogr2ogr tool to convert the data in a format compatible with QGIS like GPKGs, this will be important later in the creation of the logo since I need the representation to be an SVG file to put together with all the other elements of the logo, like the map and the magnifying glass.

After downloading boundaries I start searching all the elements and how I need to represent them in the map, like for the Italian railway logo I proceeded to make different GPKGs file with all the necessary railway data divided into the various types, this can be achieved with a regional osm file, osmium and ogs2ogr.

After this we have to put together the data, and believe it or not this is going to be the hard part.

After making the GPKGs we open QGIS and open the files with it, by doing this we can put them together and customize the representation of the data for the logo, after this we can make a layout and render an SVG file from all the data we’ve imported.

Once we have the SVG export we are able to use a program like Inkscape to put together the SVG file with the default Logo file, usually what I do is deleting unnecessary detail from the original logo, changing the background color and making changes to other details in SVG to mek the logo look better or more personalized.

Once done this the only thing left to do is giving the logo to the community and “fine-tune” it based on opinions.

See full entry

Posted by pussreboots on 23 November 2025 in English.

I’ve lived in this unincorporated neighborhood since 2004. Earlier this year, the U.S. Post Office with feedback from the Fairview Municipal Advisory Council (and surveys sent to residents) reverted our place name from “Unincorporated Hayward” to Fairview while leaving the zip code the same: 94541.

Twenty-one years of living here I’ve learned that you either know about this area and how it works or you’ve never heard of it. I was originally of the “never heard of it.” In 2010 I worked as a census enumerator sent to addresses that hadn’t mailed in their census packet. That’s when I really got to learn how Fairview works and how to use local data to better understand the area.

Now I am slowly working through my neighborhood in OSM to map it. I started with my house (my second residence here) and I’m working my way out. I am learning by doing (and reading the wiki).

Location: Fairview, Alameda County, California, 94542, United States
Posted by Adrian Shobrooke on 22 November 2025 in English. Last updated on 30 December 2025.

My diary entries are all my own thoughts and do not represent OpenStreetMap, The Humanitarian OpenStreetMap Team (HOT) or any organisation using the HOT systems. Any errors are all my own work.

This first diary entry is based on my response to a mapper on the HOT Slack Channel asking about validation methods.

When it comes to HOT mapping and validation, I’d say there are not really any standards, or training to judge mapping against those standards. It’s a constant frustration of mine. However, the use of the data should be considered when validating tasks. If a road in Africa is a few meters out from a vehicle GPS while driving, does it really matter? The driver is going to follow the track. Relative positions are more important - do things match what might be seen in the field?

Skipping a task that you don’t feel experienced enough to validate seems a mature approach to me. I also try to map a few tasks in a project before validating tasks to get some understanding of the problems mappers may face.

I’ve only been seriously HOT mapping with some validation since early 2024, although I’ve mapped in a small way since April 2019, including my own locality. I’ve developed the thought that there are three basic types of validators;

See full entry

Posted by Somashekarknnl on 22 November 2025 in English.

Haihole Dam is constructed across Kanee halla river near Haihole village about 12 Km from Shimoga city. Kane halla is a small tributary to Tunga River which originates in Shankaragudda hills and flows mostly in thick forest. This dam is located at longitude 75deg 28’ 45” E and Latitude 13deg 53’ 08” N in the limits of Haihole village in Shimoga taluk and district. This dam has been constructed during the period 1976-79 and is in operation since then The independent catchment area of the river at the dam site is 37.81 sqkm. The stream has its origin in a fairly heavy rainfall area with its entire catchment being in hilly and forest region and hence considered as Good for yield calculation. There are gauge stations situated near to the catchment area. However four influencing rain gauge station visa, (1) Malur (2) Aynur (3) Shimoga (4) Umblebylu have been considered for yield calculation. These polygons has been drawn on the basis of these four influencing rain gauge stations and the average rain falls have been calculated for these four rain gauge stations taking into consideration the rain fall of Ten years (1952 to 1963). The average rain fall works out to 98.55 cm with 70% dependability (year 1956) Considering the catchment area as Good for average annual rainfall of 98.55 cm the yield available at dam site is 13.52 cum (477.00 mcft.) apart from this perennially flowing two small streams across which the dam is constructed discharge about 0.11 to 0.14 Cumecs during the summer months due to the existence of some springs in the Shankaragudda hills also contribute to yield. There is good flow during the monsoon months and fair flow during November and December.

Location: Bharatinagara, Basavapura, Shivamogga taluk, Shimoga, Karnataka, India
Posted by SomeoneElse on 20 November 2025 in English. Last updated on 30 November 2025.

Zaandam Station, svwd03

The https://www.openstreetmap.org website currently has two “OSM-hosted” map styles on it - the “Standard” style (raster tiles) and a “Shortbread” one. The schema for “Shortbread” is here, and the display style shown is “Colorful” from Versatiles. It looks like this:

See full entry

Location: Rosmolenbuurt, Zaandam, Zaanstad, North Holland, Netherlands, 1502 CJ, Netherlands