What changes.
The additions, sources and limits of each step. Translated from French; the French version prevails.
Live, with room for the map.
Live starts in the present after the opening animation, with a compact summary. The panel’s close button collapses it; the summary’s close button hides it. Readings keep refreshing and illustrations continue according to available sources. The “⋯” button reopens the data. Only the Live button or “Pause” deliberately stops live mode.
The historical slider remains accessible while controls are collapsed or hidden. Historical years, comparisons, ScanVan and curated tours suspend map feeds. Returning to the present resumes Live unless you deliberately paused it. Shared views retain that choice. Readings keep their timestamps; vehicle positions and animated traffic remain estimates or illustrations. Reduced-motion preferences are respected.
Sion, place by place.
- 123 OpenStreetMap places and named buildings available in search and “City → Places and landmarks”.
- Reference links and photographs for 11 places, including five additional openly licensed views.
- 57 checked links between places and measured footprints, without nearest-neighbour matching.
- Six contributed dates in a separate documentary section. Building-register dates and the timeline remain unchanged.
Cards load after the first render. Photographs load on demand; terrain, volumes, colours and animation are preserved. The inventory is partial and contemporary.
The Rhône follows its slope.
The Rhône surface sat at the lowest height of its outline, so upstream the terrain covered it. It is now split into small triangles that follow the water level measured in the terrain, 60 cm above the lowest nearby point.
Water, the motorway, radar and alerts.
The Rhône now appears as a surface, drawn from its two banks recorded in OpenStreetMap. Covered watercourses, including about 1.2 km of the Sionne beneath the town, are dashed; a button in the History panel shows them. In Live mode, dashes move in the direction of flow; their speed is illustrative.
On the A9, cars travel at the flow and speed measured by the nearest federal counting station. This illustrates the flow: no real vehicle is located, and the town’s streets, which have no public counts, show no animated traffic.
The MeteoSwiss radar is integrated. A small map shows rain in a 60 km square around Sion, and the intensity measured above the town drives the visible rain or snow. A bell gathers the official drought, forest-fire and flood alerts, transport disruptions and recent earthquakes, with their sources.
No heat-island map of Sion was found as open data; this layer awaits a publication by the town or the canton. The method page and this log are now available in German and English.
A town that moves, live.
In Live mode, trains and buses now move on the map. Their positions are estimates, calculated between the published passing times (timetable or forecast) at successive stops, along OpenStreetMap tracks and streets. This source provides no GPS position; the real gap can reach several hundred metres. Each vehicle opens a card with its line, destination and next stop. The bus lines followed are those that pass the station, the post office or the Planta.
The weather becomes visible. Rain or snow, its intensity, the slant caused by the wind and a greyer sky follow the latest complete reading from the MeteoSwiss station SIO. It illustrates a single measurement at the airport, not a radar image: it rains on the whole map or nowhere. Two boxes in the Live panel hide the vehicles or the weather effects.
Fix: Sion’s temperature could stay empty. MeteoSwiss publishes the latest ten-minute rows before they are complete; the atlas now shows the latest complete measurement, with its real time.
The interface is available in French, German and English. The translation covers menus, records, Live mode and the tour; names of places, stops and streets stay as in the sources. The method page and this log remained in French.
Back to one continuous scene.
The terrain, the measured buildings and the Sion4D palette now stay present throughout the main sequence. The opening and Play return to their animated reading by period: each volume appears once, then stays visible and in place in the following chapters. The 1640, 1780, 1840 and “Current inventory” buttons are removed from the slider, which becomes compact again.
This correction responds to feedback about overly strong changes of volumes, terrain and colours. The Volumen/VWTM models remain available in the sources of the History panel and of the method page. They no longer replace the main scene. Any link to a measured building will require a documented match.
One sequence through the sources.
The Volumen/VWTM reconstructions of 1640, 1780 and 1840 now belong to the main navigation. Three historical steps and the current inventory share the same compact panel. The Play button and the opening animation first go through the three reconstructed states, then the declared periods of current buildings.
The historical volumes appear with an illustrative movement, then return exactly to their geometry. The terrain stays fixed. Each state stays readable for 3.3 seconds after loading. The sequence can be interrupted or skipped; shared links and the reduced-motion preference do not start the opening animation.
The transition to ©swisstopo and FSO/RegBL data is indicated. The old models remain discrete states, without interpolation, EGID assignment or new construction dates. The year slider stays reserved for the dates of the present-day inventory.
Three historical states to explore.
The Volumen/VWTM models of 1640, 1780 and 1840 can now be explored in the main map, with three period buttons and a comparison with today from the same viewpoint. Object selection, source references, flagged “Random” heights and comparison with the current terrain or buildings.
Rigid alignment estimated on the terrain, checked on areas excluded from the fit; no cadastral validation is claimed. The volumes and all their faces are kept. Credit: 3D plan of the town of Sion (Volumen/VWTM), 2022 hackathon resources.
The two hills, the right way round.
Tourbillon appears on the left and Valère on the right in the opening illustration and the presentation videos, as seen from the town towards the hills. The drawings are moved, not flipped; the terrain and the 3D buildings keep their coordinates.
A reading that starts right away.
- The Play button now goes through the declared periods in seven short chapters. The long wait between 1200 and 1919 disappears; recent periods get time to be seen.
- The 46 objects classed “Before 1919” open the reading, with Valère from the start. Each group appears gradually, in an illustrative visual order.
- Stronger drops, a slight rotation of the volumes and two decreasing bounces. The camera starts from the old centre and gradually pulls back to give an overview.
- The 558 undated objects get a separate final chapter. They stay grey and hatched, without being assigned to an era.
- The manual slider keeps its reading by year. The animation respects reduced motion, can be interrupted and restores the measured coordinates at the end.
This change responds to user feedback: little movement before 1919, then a reading that was too fast. This rhythm came from our register extract, which gives 549 periods and 106 precise years, and does not describe the whole history of Sion.
The order of arrival within a period serves readability. It gives no construction year to the objects concerned.
Two hills, one town.
- Valère and Tourbillon are drawn at the opening, in an original illustration of the two monuments.
- Current volumes arrive and settle following their declared dates, then return exactly to their measured position. Optional animation, with “Skip” and respect for reduced motion.
- Undated objects stay grey and hatched. Their arrival on screen assigns them no construction era.
- Six photographs of identified places, available in the tour and the heritage records. The Basilica of Valère also has a photo in its named 3D record. Author, licence, source and date taken are shown; a missing date stays missing.
The animation does not reconstruct the old town. The Tourbillon drawing is an illustration, not a measured 3D model of its ruins. Photos are not automatically linked to nearby buildings.
Visual inspirations: Paris, Alexander Bogachev and Amsterdam / LAYRS, Alex Barakov.
More map, and a tour to start with.
- The year slider becomes compact. The breakdown by period opens on request; it no longer covers the map permanently.
- Layers are folded on arrival. A closer view of the old town leaves more room for the volumes and the terrain.
- The opening animation plays on each normal arrival on the map, with a Skip button. Links to a specific view and the reduced-motion preference are respected.
- A “Discover Sion” button opens a six-step tour: Valère, Tourbillon, the cathedral, Saint-Théodule, Maison Supersaxo and the Majorie. Camera moves, progress, step choice and simple navigation.
- Each story cites its source. The end of the tour offers to compare images, open the photographs or explore live data.
- The decorative diagonal arrows are removed from controls and links.
Dates, their uncertainties and the live recordings are kept. The historical notes of the tour are not transferred to the 3D volumes. The tour explores the map; it is neither a walking route nor a reconstruction of lost buildings.
Seeing time, replaying the last minutes.
- An opening animation reveals contemporary volumes according to their declared dates. It can be skipped or replayed, and respects the reduced-motion preference.
- A time slider with more room for recent years, and bars by declared construction period. The 558 unassignable dates stay separate.
- Live: a continuous slider to replay the responses received over the last twenty minutes, with pause, fast playback and return to the present. The window builds up from the moment recording started; gaps stay visible.
- Server collection every minute, even without visitors, for weather, the Rhône, station departures, road counts, disruptions, charging and PM10.
- A light day / night ambience, calculated from the sun, with a neutral option. Texts and controls keep their contrast.
- Six sourced entries in “Lives linked to Sion”, with History and Present-day filters. A Contact link reaches hello@conexkt.world.
The replay shows the information received at the selected time, without interpolated values or fictitious GPS positions. The time of receipt does not replace the time of measurement. Forecasts, earthquakes and aircraft stay outside this replay. The animation reconstructs neither lost buildings nor their old volumes; unknown dates are not animated as known dates. Standard access to the FEDRO counts is automatically suspended on 13 April 2027 unless renewed.
Compare, discover, then open the data.
- Four colourings available directly: periods, height, floors and declared heating. Documents and detailed readings stay on request.
- Top-view comparison: 1910 map, aerial views from 1946, 1980, 1999 and the latest mosaic. The years 1980 and 1999 are checked in the metadata of both local tiles. Contemporary volumes are hidden.
- Four photographs with a date or range, author, licence and original record. No date is automatically transferred to buildings.
- RegBL heating: 678 already-matched objects have a heating record, 637 of them with a classified source. SFOE solar potential: roof classes and annual estimates by click, with model dates.
- DIEMO charging points: declared status, maximum power and access conditions. Air quality: PM10 for Sion and Sion Airport, as a rolling daily mean.
- Permanent population of the municipality, 2010 to 2025, from STATPOP / FSO. It covers the whole municipality, beyond the 3D area.
- A tour of ten sourced landmarks, a sun and shadow simulation on the measured geometry, and a link to share the year, view and selected layers.
The rendering keeps the Sion4D style and its historical filters. Heating, charging and current measurements do not become historical data. Solar potential is projected onto the 2024 terrain; it represents neither installed panels nor income. Charging statuses have no timestamp per operator. Photos follow their individual licences. Local collections remain a next documentary step.
Three readings of the buildings, more real mobility.
- Periods, Height and Floors: dates, measured vertical extent and floors declared in the RegBL. The 542 objects without an associated floor count stay unfilled.
- A 2D / 3D control to switch between plan and terrain. On phones, one finger moves the map and two fingers rotate or zoom it.
- FEDRO counts: summaries of the available detectors at three stations within 10 km of Sion, over the latest minute received.
- GTFS-SA disruptions: messages mentioning Sion or Sitten, with validity period and publication date. Old publications are flagged.
- A compact Live summary: weather, the Rhône and the next departure up front; other readings open on request.
Authenticated requests go through the server, with a shared one-minute cache. No token, raw DATEX document, bus GPS position or simulated vehicle is published. Historical dates, the 1910 and 1946 documents and uncertainties are kept. Access to the counters follows FEDRO terms, including the standard six-month period of use.
Sion4D: exploring the town through time.
- A new name for an atlas linking buildings, historical documents and current data.
- Metadata, sharing image and icons updated for Sion4D.
- Five-day MeteoSwiss forecasts: minimum, maximum and precipitation for station SIO, clearly separated from measurements.
- Catalogue of earthquakes verified by SED / ETH: seven days, within 50 km of Sion, with place, time, magnitude and distance.
Forecasts are not observations. The seismic catalogue may be delayed. The time slider keeps filtering a contemporary inventory; it does not reconstruct the town’s earlier states.
Road counts and transport disruptions are being connected. They are not yet available in this version.
Live, with landmarks.
- A “Live” button turns on contemporary layers, measurements and next departures in one view, keeping the atlas style.
- Summary of the weather in Sion, the Rhône’s flow, departures from the station or the selected stop, and the availability of OpenSky positions.
- Departures and aircraft re-read every minute, weather and the Rhône every five minutes. Scheduled times, forecasts, measurement dates and outages stay distinct. Refresh pauses outside the present or in a hidden tab.
- Aggregated view counter next to the credits, without cookies or visitor profiles. It starts when it went live: no historical total is invented.
- This log makes it possible to follow future changes.
Volumes and terrain keep their vintages. Bus GPS positions are not provided by the feed used. An unavailable source stays flagged; it becomes neither a zero measurement nor a fictitious animation.
Four readings of Sion.
- New History, City, Mobility and Today interface, with a panel suited to phones.
- Siegfried map requested for 1910, SWISSIMAGE aerial photograph from 1946 and current aerial mosaic. Historical documents are projected onto the measured 2024 terrain.
- 16 FOCP heritage markers, 40 FOT stops, OpenStreetMap streets, railway tracks, watercourses and trees.
- Timetables and forecasts from transport.opendata.ch, measurements from MeteoSwiss SIO and the Rhône at Sion, regional OpenSky feed on request.
- Metadata, sharing image from the real rendering and browser icons updated.
Natural hazards and the tourist events calendar remained external links. Contemporary layers are paused during historical reading.
The buildings and their dates.
- First area of 1.33 km² and 455 objects, then extension to 4.18 km² and 1,213 3D objects.
- swissBUILDINGS3D geometry, swissALTI3D 2024 terrain and a cautious match with the points of the Federal Register of Buildings and Dwellings (RegBL).
- 655 objects with an assignable year or period; 558 unassignable dates kept as such.
- Search by address or EGID, period reading, source records and coverage audit.
- Separate ScanVan view: a sample of 100,000 measured points, published by EPFL and HES-SO Valais.
The year slider filters a contemporary inventory. It does not restore lost buildings or historical volumes.