SubRoute
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Smarter substation route planning

v32
Quick login protects the app screen from casual access. Users should only import data they are authorised to use.
Phone app / PWA
SUBROUTE v32
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SubRoute

Smarter substation route planning

Paste the substations you need to visit, choose your start and finish points, then generate clean visit orders, planning-map groups and map route sections.

Load data file Start planning Planning map Nearby live map Saved routes

Load your substation file

SubRoute does not include any substation database in this version. Each user loads their own authorised CSV, Excel, JSON or clickable PDF file. The data stays in that user’s browser/device.

Data
Important: your file stays in this browser/device storage for this logged-in user. Do not load or share any substation file unless you are authorised to use it.

CSV/Excel columns accepted: Substation_Name, Substation_Number, Postcode, Latitude, Longitude. Also accepts name/number/postcode/lat/lon style headers. Excel import reads the first non-empty worksheet. PDF import works with clickable map links that contain coordinates.

File note: imports are read locally in your browser. Large PDFs can take a minute. Excel import may need an internet connection the first time so the spreadsheet reader can load. If PDF import cannot read clickable coordinates, use the CSV/Excel template instead.

Plan a route

Paste the substation names and numbers, then let SubRoute order them.

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Best results: enter substation name + number. Number-only searches are allowed, but duplicate numbers will be flagged.

Postcode lookup works online. Coordinates work offline.

Phones can behave differently to laptops. 3-stop sections are safest for multi-stop apps. Point-to-point apps create one link per stop.

Choose which map app the route buttons open.

Phone-ready layout.
Install this as a phone app once hosted online, or use it as a local field route planner.
SubRoute Job Sheet
SubRoute — smarter substation route planning
© 2026 SWJ Power Engineering. All rights reserved.

Planning Map

Paste a long list of substations and SubRoute will plot labelled pins, then group nearby sites together by a maximum radius in miles. This screen is for deciding which 7–8 sites sit close together — it is not used as sat nav.

Planning map

Best results: use substation name + number. SubRoute matches the sites, plots each location with a visible label, groups sites by max radius in miles, and respects the group size limit for each planned day.

Planning-map mode: this does not open Google Maps or create sat-nav links. It is a visual planning board to show which substations are close together. This version uses the user-loaded substation file only. No built-in substation database is supplied.
Create a planning map to see labelled substation pins on a real map here.

Nearby Live Map

Show substations from the loaded data file around your current phone location. This is a live planning view only — it does not create sat-nav routes unless you load sites into the route planner.

Live nearby
Privacy: your current location is only used on this device to calculate nearby sites from the file you loaded. It is not saved to SubRoute. Browser location normally needs an HTTPS hosted app and your permission.
Tap “Show Substations Near Me” to plot nearby loaded substations on a live map.

Saved Routes

Store routes on this device so you can reopen previous plans without rebuilding them.

Device storage

Substation Search

Search the loaded database by name, number or postcode, then add sites directly to the route builder.

42k+ locations

Tip: use name + number where possible because some substation numbers are duplicated.

Settings

Set your regular start point and default route options. These settings are saved on this device.

Phone app setup
Install SubRoute on your phone
  1. Host this package on a secure HTTPS web link.
  2. Open it on your phone.
  3. Android Chrome: tap Install app or browser menu → Add to Home screen.
  4. iPhone Safari: tap Share → Add to Home Screen.

Opening the HTML file directly still works, but proper install/offline app behaviour needs a hosted HTTPS copy.