Rubber Side Up | bikecrash.info

Rubber Side Up is a project exploring over 4000 reported crashes in Western Australia involving cyclists from 2010 to 2015. There are 1.95 reported crashes per day on average, and many more go unreported. Indeed, in the 2015 report by the WA Auditor General it is estimated that only 21% of crashes requiring hospital treatment are reported to police, and only 12% of surveyed cyclists involved in a crash reported the crash to police. The two main parts of this website are the crash map and the crash stats.

Recent updates:
November 2017: The 2016 crash data was not released this year.
6 November 2016: crash map and hotspots updated to include crashes from recently released 2015 crash data, and added some comments under the crash map about this data. Also, you can now view crashes on the map by year. Note that only the map and hotspots have been updated, I have not yet updated the crash type breakdown graphs on the other tabs.

The data was supplied by Main Roads WA though this website is not affiliated with or endorsed by them. You can view the locations of each crash and details such as crash severity (i.e. fatalities, requiring hospitalisation, other medical attention, or property damage only) and what sort of other vehicles are involved. You can view crashes based on these classifications, or based on the speed limit of the local roads. Crashes have been collated and you can use the tabs above to view stats of crashes broken down by various categories.

The crash data only records the types of vehicles involved. The number of people involved in each crash was not provided. Also, only the types of vehicles involved are given, not their number (so we can't distinguish between single-cyclist and cyclist-vs-cyclist crashes for example). Importantly, the at-fault party was not identified either.

I have included some minimal commentary noting some trends or explanations that I or others have found. I say it's a commentary on the results rather than an analysis as it doesn't consider any of the underlying causes (for which I don't have data, and for which there are experts :) My job is programming and data wrangling - I'd prefer you to use this website as a resource to start discussions on how to improve things rather than it being my soapbox.

This website was initially created for GovHack 2015, a weekend-long annual event promoting the use of open government data in Australia and New Zealand. It's still a work in progress. I aim to update this page over time to add more data and commentary - please visit again soon, and email me if you have any suggestions, criticism or further data to include.

Scroll down to see comments about the 2015 crash data.

Click on a crash site to view more information (in some browsers you may need to double-click), such as the severity and the distance of the crash to the nearest designated bike route. Where numbers are shown, multiple crashes have been reported (see the Crash hotspots tab for more details). If you click on the number, it will zoom into that spot. Then if you click on the marker after it's zoomed in, it will expand to show further crash icons that you can then interrogate. You can toggle the display of different crash types using the boxes below. Scroll down to see more discussion below the map. Click here to view legend.

Trucks Motorcycles Pedestrians Animal Other (includes cars) Bike only

Fatal Hospital Medical Property Unknown

NEW: Toggle year: 2010 2011 2012 2013 2014 2015

Toggle speed limit: 10km/h 30km/h 40km/h 50km/h 60km/h 70km/h 80km/h 90km/h 100km/h 110km/h Other

Display Strava heatmap. Many thanks to Strava for allowing the heatmap to be used here. View the legend for more details.

Here are a few interesting things to look at - email ouch(at)bikecrash(dot)info if you find something interesting that you'd like included here. Many eyes are better than one pair and everyone may have suspicions of trends in their local area that they'd like to confirm and make known.
Comments on some 2015 crash locations:
   The worst crash hotspot in 2015 is the West Swan Rd/Swan St roundabout in Guildford with 4 crashes. This location links the Midland railway line PSP to the Swan Valley, and until recently was one option (along with James St) for transport between Perth and Midland and the hills beyond. Recently the Midland PSP was extended to Midland to provide an off-road route for Midland-Perth riders to bypass this point.
   Seven crashes were reported at roundabouts along a stretch of The Avenue and Hackett Dr in Crawley, which form part of the popular round-the-river loop. There is a bike lane along Hackett Dr although it is alongside parked cars and abruptly vanishes at some roundabouts.
   Another 6 people were hit on Curtin Ave in Cottesloe despite the presence of a bike lane.
   Riverside Road in Fremantle had 6 crashes reported, again despite the presence of bike lanes. From the rough location data provided, it looks like these crashes occurred near traffic islands.
   The Esplanade in Mosman Park had 8 crashes reported in 2015.
   MacRae Rd in Applecross had traffic calming measures installed in 2015. A further 3 crashes were reported but it's unknown if these were before or after the road modifications.
General comments:
   There are many crashes along Marmion Ave in an 80km/h zone.
   There are a lot of crashes in the Perth CBD - but as we don't have bike traffic data, we can't tell if the crash rate is actually worse than elsewhere.
   There's a PBN route one block away from Albany Hwy in Victoria Park but cyclists are still using and are being hit on Albany Hwy.
   From 2010-2014, there were 19 crashes over a 1km stretch of Macrae Rd in Applecross. This is designated as the PBN but the Strava heatmap shows that cyclists using Strava prefer to use alternative routes closer to the river. In 2015, traffic calming measures were installed and 3 further crashes were reported as mentioned above.
   Loftus St/Thomas St in West Perth has 50 crashes reported between Newcastle St and Kings Park Rd (less than 2km).
   In the northern suburbs there are PBN routes marked between the coast and Marmion Ave, and also between Marmion Ave and the freeway PSP. However the Strava heatmap shows that Marmion Ave is more popular than these PBN routes, unfortunately with a significant number of crashes (38 crashes with vehicles other than bikes from Hepburn Ave to Burns Beach Rd, a 10.7km distance).
   Hepburn Ave shows a similar problem where it seems to carry more traffic than a nearby PBN route, there are 33 crashes in the 8km stretch from the Wanneroo Rd to West Coast Dr.

This map is a work in progress. Some further ideas that I would like to implement are:
   Viewing crashes by day of week or time of day (data currently unavailable)
   Viewing individual details of crashes such as hit from behind (data currently unavailable)
   Viewing locations of on-road bike lanes (unfortunately, I don't currently have any maps of on-road bike lanes)

 

These hotspots are locations where at least three crashes have been reported at the same intersection. Again, the current state of each intersection is given. Locations with the highest amount of crashes are shown first. Below each crash location, the year and details of each crash are shown; note that some crashes involved multiple other parties. The intersection names are as given in the Main Roads database which is why some names may appear to be slightly wordy or technical, or may use Main Roads internal names (e.g. where it says Guildford Road & East Perth Terminal below, it's commonly known by the public as East Pde - I pull out the data directly without editing it).

First, hotspots are shown for the 2015 crashes only. There were three locations where at least three crashes were reported in 2015 alone:

WEST SWAN RD & SWAN ST & MEADOW ST (Roundabout)
4 crashes

2015:
2015:
2015:
2015:
WELLINGTON ST 124 0116 - H016 & WELLINGTON ST & GEORGE ST (Intersection)
3 crashes

2015:
2015:
2015:
BRUCE ST & OXFORD ST (Intersection)
3 crashes

2015:
2015:
2015:

In total there are 130 hotspots for the 2010-2015 period. There are almost as many hotspots at roundabouts (44) compared to traffic lights (45). 13 further hotspots are at stop signed intersections, 27 are other intersections and one is at the Shepperton Rd to Canning Hwy onramp in Victoria Park. The Ardross St/Macrae Rd intersection has 11 crashes shown below, but it's in the middle of a 1km stretch of Macrae Rd in Applecross that has had 22 crashes reported from 2010-2015 and was modified in 2015 to reduce traffic.

WELSHPOOL RD EAST & LESMURDIE RD (Intersection)
13 crashes

2010:
2010:
2011:
2011:
2012:
2012:
2013:
2013:
2013:
2014:
2014:
2015:
2015:
ARDROSS ST & MACRAE RD (Roundabout)
11 crashes

2010:
2010:
2011:
2012:
2012:
2012:
2013:
2013:
2013:
2014:
2015:
SOUTH PERTH ESP & MENDS ST (Intersection)
10 crashes

2010:
2011:
2011:
2011:
2011:
2012:
2013:
2013:
2013:
2015:
MARMION AV & MARINA BVD (Intersection)
9 crashes

2010:
2011:
2013:
2013:
2014:
2014:
2014:
2015:
2015:
H020 WEST BOUND - LOFTUS ST OFF & LOFTUS ST & CAMBRIDGE ST (Lights)
8 crashes

2010:
2010:
2011:
2011:
2011:
2011:
2015:
2015:
KENT ST & HAYMAN RD (Roundabout)
7 crashes

2010:
2011:
2012:
2013:
2014:
2015:
2015:
THE AVENUE & BROADWAY (Roundabout)
7 crashes

2010:
2011:
2012:
2012:
2013:
2015:
2015:
ROBERTS RD & BISHOPSGATE ST & MILLER ST (Roundabout)
7 crashes

2010:
2011:
2012:
2012:
2013:
2013:
2014:
GUILDFORD RD & EAST PERTH TERMINAL - EAST CAR PARK ACCESS (Intersection)
7 crashes

2010:
2012:
2013:
2013:
2013:
2013:
2013:
WEST SWAN RD & SWAN ST & MEADOW ST (Roundabout)
7 crashes

2010:
2014:
2014:
2015:
2015:
2015:
2015:
MANDURAH RD & PINJARRA RD (Lights)
6 crashes

2010:
2012:
2012:
2014:
2014:
2015:
MACLEOD RD & MACRAE RD & NESS RD (Roundabout)
6 crashes

2012:
2013:
2013:
2013:
2015:
2015:
CURTIN AV & MARINE PDE (Roundabout)
6 crashes

2011:
2011:
2012:
2013:
2014:
2014:
BROADWAY & EDWARD ST (Roundabout)
6 crashes

2010:
2011:
2013:
2013:
2014:
2014:
MOUNT ST EAST & ST GEORGES TCE & MILLIGAN ST SOUTH (Lights)
6 crashes

2010:
2011:
2012:
2013:
2014:
2014:
PIER ST NORTH & ABERDEEN ST (Roundabout)
6 crashes

2011:
2011:
2011:
2014:
2015:
2015:
BEAUFORT ST & ABERDEEN ST (Lights)
6 crashes

2012:
2013:
2013:
2014:
2014:
2015:
LOFTUS ST ON - H020 EAST BOUND & LOFTUS ST & LEEDERVILLE PDE (Lights)
6 crashes

2010:
2011:
2012:
2012:
2013:
2014:
FLINDERS AV & WHITFORDS AV (Intersection)
6 crashes

2012:
2012:
2013:
2014:
2014:
2014:
MANDURAH RD & MURDOCH DR & ALLNUTT ST EAST (Lights)
5 crashes

2010:
2012:
2011:
2012:
2013:
WARNBRO SOUND AV & HALLIBURTON AV (Lights)
5 crashes

2010:
2011:
2011:
2012:
2013:
NICHOLSON RD & YALE RD & GARDEN ST (Roundabout)
5 crashes

2010:
2010:
2012:
2014:
2015:
NORTH LAKE RD & KITCHENER RD (Roundabout)
5 crashes

2011:
2013:
2014:
2014:
2014:
CARRINGTON ST & DALKEITH RD (Roundabout)
5 crashes

2011:
2012:
2012:
2014:
2014:
H015 NTH BOUND - MILL POINT RD & ESPLANADE RAMP (Intersection)
5 crashes

2010:
2010:
2013:
2015:
2015:
MILLIGAN ST & HAY ST (Lights)
5 crashes

2010:
2012:
2014:
2014:
2015:
BEAUFORT ST & ROE ST (Lights)
5 crashes

2010:
2010:
2012:
2013:
2015:
THOMAS ST & BAGOT RD & KINGS PARK RD (Lights)
5 crashes

2011:
2014:
2014:
2015:
2015:
HARVEST TCE & HAY ST (Intersection)
5 crashes

2011:
2013:
2013:
2013:
2015:
WELLINGTON ST 124 0116 - H016 & WELLINGTON ST & GEORGE ST (Intersection)
5 crashes

2014:
2014:
2015:
2015:
2015:
HAY ST & COGHLAN RD (Stop)
5 crashes

2011:
2011:
2012:
2014:
2014:
THOMAS ST & RAILWAY PDE & LOFTUS ST & RAILWAY ST (Lights)
5 crashes

2010:
2010:
2011:
2012:
2013:
MARMION AV & HEPBURN AV (Lights)
5 crashes

2011:
2011:
2012:
2013:
2015:
MARMION AV & ANCHORAGE DR & NEERABUP RD (Roundabout)
5 crashes

2010:
2011:
2012:
2013:
2013:
ENNIS AV & CARVIE ST & COUNCIL AV (Lights)
4 crashes

2010:
2011:
2013:
2013:
BEELIAR DR & WENTWORTH PRD (Lights)
4 crashes

2010:
2011:
2014:
2014:
SOUTH TCE & DOURO RD (Roundabout)
4 crashes

2010:
2011:
2012:
2015:
SOUTH ST & MARINE TCE (Intersection)
4 crashes

2012:
2013:
2014:
2014:
PHILLIMORE ST & PAKENHAM ST (Stop)
4 crashes

2010:
2013:
2015:
2015:
REYNOLDS RD & MACRAE RD (Roundabout)
4 crashes

2011:
2011:
2013:
2013:
WELSHPOOL RD EAST & H018 NTH BOUND OFF & ON (Lights)
4 crashes

2010:
2011:
2014:
2014:
GUGERI ST & LEURA AV (Roundabout)
4 crashes

2010:
2011:
2012:
2015:
ALBANY HWY (END DUAL) & DUNCAN ST (Lights)
4 crashes

2011:
2011:
2012:
2013:
KOOYONG RD & FRANCISCO ST (Roundabout)
4 crashes

2010:
2012:
2012:
2014:
BELMONT AV & CAMPBELL ST (B) (Roundabout)
4 crashes

2010:
2011:
2011:
2011:
MILLIGAN ST & WELLINGTON ST & ENTERTAINMENT CENTRE ENT (Lights)
4 crashes

2012:
2012:
2013:
2015:
SALVADO RD & OLD JACARANDA WY & SALVADO RD WEST & DENTON ST (Roundabout)
4 crashes

2010:
2010:
2011:
2012:
NEWCASTLE ST & LOFTUS ST (Lights)
4 crashes

2010:
2010:
2011:
2013:
H016 STH BOUND - VINCENT ST OFF & VINCENT ST & LEEDERVILLE PDE & LINK TO H536 (Lights)
4 crashes

2011:
2013:
2013:
2014:
THE BOULEVARD & HOWTREE PL (Lights)
4 crashes

2010:
2010:
2014:
2015:
IOLANTHE ST & BROADWAY (Roundabout)
4 crashes

2010:
2010:
2012:
2013:
HEPBURN AV & HOWLAND RD & ALMALFI DR (Roundabout)
4 crashes

2010:
2010:
2010:
2015:
GLENGARRY DR & HEPBURN AV (Roundabout)
4 crashes

2011:
2014:
2014:
2014:
DAMPIER AV & OCEAN REEF RD (Intersection)
4 crashes

2010:
2013:
2014:
2014:
MARMION AV & MOORE DR (Intersection)
4 crashes

2013:
2014:
2014:
2015:
MARMION AV & ANCHORAGE DR NORTH & HESTER AV (Roundabout)
4 crashes

2010:
2010:
2012:
2014:
YORK ST & GREY ST (Roundabout)
3 crashes

2013:
2013:
2015:
BLAIR ST & SYMMONS ST (Intersection)
3 crashes

2010:
2013:
2013:
ENNIS AV & ELANORA DR & GRANGE DR (Lights)
3 crashes

2013:
2014:
2015:
SPEARWOOD AV & HAMILTON RD (Roundabout)
3 crashes

2010:
2012:
2015:
MURDOCH DR & FARRINGTON RD & ALLENDALE ENT (Roundabout)
3 crashes

2010:
2011:
2012:
SPENCER RD & BURSLEM DR & CORFIELD ST & WARTON RD (Lights)
3 crashes

2010:
2010:
2013:
SOUTH ST & WHEATLEY DR (Intersection)
3 crashes

2012:
2012:
2014:
SOUTH TCE & SOUTH ST (Lights)
3 crashes

2012:
2012:
2013:
STEVENS ST & ATTFIELD ST (Stop)
3 crashes

2011:
2012:
2013:
WILFRED RD & NICHOLSON RD & BANNISTER RD (Lights)
3 crashes

2011:
2011:
2014:
WILLIAM ST & PARRY ST (Roundabout)
3 crashes

2011:
2012:
2015:
STOCK RD & MARMION ST (Lights)
3 crashes

2012:
2014:
2014:
BEACH ST & JAMES ST (Intersection)
3 crashes

2012:
2012:
2012:
ACANTHUS RD & KAREL AV (Intersection)
3 crashes

2012:
2014:
2014:
NORTH LAKE RD & MARMION ST (Lights)
3 crashes

2010:
2011:
2013:
POINT WALTER RD & PRESTON POINT RD (Roundabout)
3 crashes

2010:
2011:
2011:
RIVERTON DR - EAST & BARBICAN ST EAST (Roundabout)
3 crashes

2010:
2013:
2013:
CAROUSEL RD & CECIL AV (Roundabout)
3 crashes

2011:
2011:
2011:
MANNING RD & HEDLEY PL (Intersection)
3 crashes

2012:
2014:
2015:
KINTAIL RD & FORBES RD (Roundabout)
3 crashes

2012:
2012:
2015:
COOLGARDIE ST & BOULDER ST WEST (Stop)
3 crashes

2014:
2014:
2014:
CURTIN AV & FORREST ST (Intersection)
3 crashes

2011:
2011:
2015:
TURNER AV & KENT ST & DICK PERRY AV (Roundabout)
3 crashes

2013:
2014:
2015:
WELSHPOOL RD & WELSHPOOL RD & SWANSEA ST EAST (Intersection)
3 crashes

2012:
2013:
2014:
ERIC ST & BROOME ST (Roundabout)
3 crashes

2013:
2014:
2015:
SOUTH TCE & COODE ST (Lights)
3 crashes

2014:
2014:
2014:
DEVENISH ST & KENT ST (Roundabout)
3 crashes

2014:
2014:
2014:
HACKETT DR & THE AVENUE & PRINCESS RD (Roundabout)
3 crashes

2013:
2015:
2015:
KENT ST & GLOUCESTER ST (Roundabout)
3 crashes

2011:
2015:
2015:
MILL POINT RD & TATE ST (Lights)
3 crashes

2010:
2010:
2013:
KING GEORGE ST NORTH & WASHINGTON ST (Roundabout)
3 crashes

2010:
2010:
2010:
MONASH AV & HOSPITAL AV (Roundabout)
3 crashes

2011:
2013:
2014:
SHEPPERTON RD ON TO CANNING HWY (WESTBOUND) (Midblock)
3 crashes

2013:
2013:
2014:
MILL POINT RD & QUEEN ST (Intersection)
3 crashes

2010:
2013:
2013:
RIVERSIDE DR & PT FRASER CAR PARK & RIVERSIDE DR ACCESS (Intersection)
3 crashes

2013:
2014:
2014:
GREAT EASTERN HWY & BOLTON AV (Lights)
3 crashes

2010:
2011:
2013:
PLAIN ST & NELSON CR (Stop)
3 crashes

2013:
2013:
2015:
MOUNTS BAY RD & WILLIAM ST & THE ESPLANADE (Lights)
3 crashes

2010:
2011:
2014:
BARRACK ST & ST GEORGES TCE (Lights)
3 crashes

2010:
2012:
2015:
BELMONT AV & FRANCISCO ST (Roundabout)
3 crashes

2010:
2012:
2015:
SPRING ST & MOUNTS BAY RD & MITCHELL FWY ACCESS (Lights)
3 crashes

2011:
2011:
2015:
WILLIAM ST & ST GEORGES TCE (Lights)
3 crashes

2010:
2012:
2012:
ST GEORGES TCE & KING ST (Intersection)
3 crashes

2010:
2011:
2012:
HAVELOCK ST & KINGS PARK RD (Stop)
3 crashes

2011:
2013:
2013:
ROKEBY RD & HAMERSLEY RD (Stop)
3 crashes

2011:
2014:
2014:
WILLIAM ST & ROE ST (Lights)
3 crashes

2011:
2011:
2012:
MURRAY ST ON - H016 STH BOUND & GEORGE ST & MURRAY ST (Lights)
3 crashes

2011:
2014:
2015:
STIRLING ST & ABERDEEN ST (Lights)
3 crashes

2012:
2013:
2014:
FRANCIS ST & WILLIAM ST (Lights)
3 crashes

2011:
2013:
2013:
HAY ST & JERSEY ST (Lights)
3 crashes

2010:
2012:
2013:
SELBY ST & UNDERWOOD AV & HAY ST (Lights)
3 crashes

2010:
2015:
2015:
WILLIAM ST & ABERDEEN ST (Lights)
3 crashes

2010:
2014:
2013:
PARKER ST & ABERDEEN ST (Stop)
3 crashes

2012:
2012:
2012:
JOHN ST & FITZGERALD ST (Stop)
3 crashes

2010:
2012:
2013:
CAMBRIDGE ST & HARBORNE ST (Lights)
3 crashes

2011:
2014:
2014:
SOUTHPORT ST & CAMBRIDGE ST (Lights)
3 crashes

2010:
2011:
2011:
RUISLIP ST & HARBORNE ST (Stop)
3 crashes

2010:
2011:
2011:
BEAUFORT ST & VINCENT ST (Stop)
3 crashes

2014:
2014:
2015:
GRANTHAM ST & KIRKDALE AV (Roundabout)
3 crashes

2011:
2013:
2014:
BRUCE ST & OXFORD ST (Intersection)
3 crashes

2015:
2015:
2015:
ANZAC RD & OXFORD ST (Roundabout)
3 crashes

2011:
2013:
2015:
BEECHBORO RD SOUTH & RAILWAY PDE (Stop)
3 crashes

2010:
2013:
2014:
HALE RD & VALENCIA AV (Intersection)
3 crashes

2012:
2014:
2014:
GRAND PROM & WALTER RD WEST (Lights)
3 crashes

2011:
2012:
2014:
HUTTON ST ON - H016 STH BOUND & HUTTON ST & H016 STH BOUND - HUTTON ST OFF (Intersection)
3 crashes

2010:
2014:
2015:
BEECHBORO RD NORTH & MORLEY DR (Lights)
3 crashes

2010:
2011:
2014:
SACKVILLE TCE & DEANMORE RD (NORTH) (Roundabout)
3 crashes

2010:
2012:
2014:
MARMION AV & SEACREST DR (Stop)
3 crashes

2014:
2014:
2015:
ST HELIER DR & WEST COAST DR (Intersection)
3 crashes

2011:
2013:
2013:
HEPBURN AV & WARAKER RD (Intersection)
3 crashes

2012:
2014:
2015:
BARRIDALE DR & WHITFORDS AV (Intersection)
3 crashes

2012:
2012:
2014:
JOONDALUP DR & HODGES DR & GRAND BVD (Lights)
3 crashes

2010:
2011:
2015:
MARMION AV & SHENTON AV (Roundabout)
3 crashes

2011:
2012:
2015:
PINJAR RD & JOONDALUP DR (Roundabout)
3 crashes

2010:
2013:
2014:

 

This data is based on the 2010-2014 data only.

This tab displays crashes by vehicle and intersection. See also the PSP/PBN tab which has a preliminary comparison of crashes at intersections in general versus intersections on the PBN.

Main Roads records crashes as occurring mid-block or at an intersection. I further classified "intersection" crashes as being at: traffic lights, where a traffic signal is located within 50m of the crash site; roundabout, where a roundabout sign is located within 50m of the crash site; or stop sign, where a stop sign is located within 50m of the crash site. As I have had to infer the intersection type using the current locations of traffic lights and signs (the actual intersection types and locations don't seem to be publicly available directly, at least not yet), these intersection types are as of June 2015 rather than at the time of the crash and may have been upgraded or downgraded (depending on the actual infrastructure and your opinion) since then. If you have access to nearmap you can use it to look at aerial imagery at various times in the past.

Note that there seem to be some seemingly odd cases recorded such as at the intersection of Morley Dr and Crimea St in Morley where a crash is recorded as "midblock" (you can view this on the crash map). I have left these cases intact as Main Roads may have some reason for it.

Unfortunately the crash data didn't include descriptions of the crashes (such as that provided in the Queensland crash data) which could provide more insights. I'd be particularly interested in looking at "midblock" crashes and seeing how many cyclists are being hit from behind or sideswiped, or by people pulling into/out of driveways/street parking.

The two graphs immediately below show the same data, but the roles of the two data categories have been swapped.


Download CSV

Download CSV

The below graphs are derived from the same information, but each column has been normalised to show proportions for each category rather than raw counts in order to make trends more visible.


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Download CSV

As the raw counts are shown above rather than percentages, the percentages of crashes at each intersection type are:

Traffic lights:13.1%
Roundabout:14.0%
Stop sign:9.3%
Other intersection:23.1%
Midblock:40.5%

There are more crashes at intersections than mid-block. This is interesting as there's a lot of focus on overtaking cyclists safely yet the majority of crashes are at intersections. I don't have access to bike lane locations, but it would be interesting to plot the number of crashes in bike lanes, and at intersections on roads that contain bike lanes on either side of intersection, but not in the intersection itself. Also, it may be worth comparing the amount of funding going to intersection upgrades compared to installing on-road bike lanes, when the majority of crashes occur at intersections. If anyone has this data, please let me know!

These charts show the severity of crashes at different intersection types (or mid-block), again the chart on the right contains the same data as the left chart but with normalised column heights:


Download CSV

Download CSV

As the number of fatal crashes is quite small, I'll list the breakdown here: 3 at traffic lights, 1 at a roundabout, 4 at other intersections and 15 mid-block (none at stop signs). So although there more crashes at intersections than mid-block, there were 15 fatal mid-block crashes compared to 8 fatal crashes at intersections over this period. However the percentages of crashes at intersections resulting in hospital visits or requiring other medical assistance (16.6% and 30.5% respectively) was higher compared to mid-block collisions (16.0% and 26.4% respectively).

 

This data is based on the 2010-2014 data only.

Here crashes are shown by crash severity and the current speed limit of the road. Note that the speed limit may have changed since the crash. School zones are not taken into account. Again, the graphs are first shown as raw counts and then are normalised to show proportions. CSV files are available below each graph, note that these do not contain counts for crashes where the speed limit was unknown.

Just looking at the total numbers by severity, over a 5 year period, there were 23 fatal crashes, 583 crashes resulting in a trip to the hospital (so about every 3 days on average someone goes to hospital or worse), 1029 crashes requiring other medical treatment, and 1932 crashes with property damage only. And these are only the reported crashes.

Most roads in the metro area are 50 or 60 km/h zones and as you'd expect, most crashes occur in these speed limit zones. Generally, crashes become more severe (i.e. resulting in a higher proportion of hospitalisation or fatalities) in higher speed limit zones, though due to the small sample sizes we get a couple off outliers such as 110km/h zones being fatality-free, and a greater proportion of crashes in 10km/h zones requiring hospital treatment compared to most other speed limit zones. These outliers aside, the results are probably what you'd expect.


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This data is based on the 2010-2014 data only.

Here crashes are shown by vehicles involved and the current speed limit of the road. The speed limit may have changed since the crash. School zones are not taken into account. Note that the Main Roads crash data does not identify which party was injured, i.e. these statistics reflect the overall outcome of a crash, not just what happened to cyclists. This is particularly important when looking at the severity of crashes with motorcycles and pedestrians.


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Download CSV

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This data is based on the 2010-2014 data only.

This tab shows crashes by "administrative area" in and around the Perth metro area. The Main Roads database contains a number of areas that largely appear to be local government areas. However as there are a few areas that do not have corresponding local governments, I've called them administrative areas.


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The City of Perth is obviously a hotspot with probably the greatest amount of traffic, though the speed limit in the CBD is now typically lower than elsewhere. Like any other area, there are other hazards such as many parked vehicles which mean full lane changes are often required to safely pass the vehicle outside of the door zone. These and other issues have been discussed by people in more detail elsewhere...

Cottesloe and East Fremantle have the next highest rate of crashes and it's well known that there is no grade-separated PSP connecting this area to Fremantle. A string of crashes are visible on the crash map along Curtin Ave (despite the presence of a bike lane) and Marine Pde.

Although Stirling has recorded a high number of crashes, it also covers a large area containing a lot of roads and so the crash rate per kilometre is in the middle of the pack.

 

This data is based on the 2010-2014 data only.

These graphs display the distance (as the crow flies) of crashes to the nearest bike infrastructure. Further below, I've included a comparison of crashes at intersections on the Perth Bicycle Network (PBN) compared to all crashes.

Principal Shared Paths (PSPs) are typically off-road and located alongside railway lines and freeways. The Perth Bicycle Network (PBN) is a collection of routes that often utilise roads (not necessarily containing marked bike lanes) and as such reach further than the PSPs. Both of the above route types are shown on the crash map. Other designated shared paths are typically low-speed recreational paths, e.g. South Perth foreshore and around Lake Monger. These are not shown on the crash map.

I'm currently working on comparing overall crash data to crashes on the PBN. I'll post more results here over time but for now, here's a comparison of crashes by severity (left) and vehicle (right) for all locations (top row) versus crashes within 100m of the PBN (bottom row). The most notable feature here is the much higher proportion of crashes at roundabouts and the lower proportion of crashes at traffic lights. As the PBN generally runs on lower traffic roads, one would expect that there are a greater proportion of intersections with roundabouts and fewer with traffic lights. Whether the change in the distributions of crashes at these intersections matches the change in the proportions of these intersection types is unclear as I don't have the data at this stage. Overall though, 67% of crashes on the PBN occur at intersections, compared to 59.5% of crashes overall.


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Download CSV

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Data sources

The raw data is available from Main Roads WA and the Department of Transport via SLIP - there may have been more recent datasets posted since this website was created (July 2015). Many thanks to Main Roads WA and the Department of Transport for providing these files. You'll need to do an advanced search, and tick the box for vector data to download the csv files. Search for these terms:

   Crash_2010_to_2014_mrwa: the raw crash data from Main Roads
   Legal_Speed_Limit_mrwa: speed limits for all roads in WA
   Road_Hierarchy_mrwa: road hierarchy for all roads in WA
   Traffic_Signals_mrwa: traffic signal locations in WA.
   Signs_Regulatory_MRWA_20150602: sign location and type data.
   at_cyc_p_pbn_dataset: the Perth Bicycle Network routes as shown on the map and used for distance calculations. These are ArcGIS shape files but I have converted them to KML (better for using with Google Maps/Earth) and included them in the software download link above.
   at_cyc_p_principal_shared_path_dataset: the Principal Shared Path network (typically near railway lines and freeways). Again, a KML version is included in the download link above.

All speed limits, traffic light locations, sign locations used for inferring roundabouts, stop signs etc. are current locations as of July 2015, and these road conditions may have changed since the crash was recorded.

The Strava heatmap is used with permission from Strava.

Licence and software

Materials published on this website can be reused freely. If you do so, I'd be interested in hearing from you - my email address is below. Although the data is accurate to the best of my knowledge, I take no responsibility for any errors though I'd be rather embarrassed! Matlab source code for extracting and processing the various data is available here (freely available under the MIT license), the data itself is also included or you can download it yourself from the links below. If you have the skills, I strongly encourage you to verify the code yourself, and play with the data further to make your own interpretations. This is also fairly easy to adapt for other types of crashes, e.g. if someone wanted to do a similar thing for motorcycles. It's written in Matlab but if you don't have access to it, you can either try Octave instead (I haven't tried this) or just use the CSV files I've included under the various graphs. If you're processing the data yourself, you may notice that some of the counts seem inconsistent - some reasons for this include multiple different vehicle types being involved in a single crash, or crashes occurring in an unknown speed limit zone. I recommend filtering the data in Excel to verify this for yourself. The crash map uses MarkerClustererPlus to show the number of crashes at the same location, and the Overlapping Marker Spiderfier to let you interrogate these co-located crashes.

Icons

The icons used on this website are from https://mapicons.mapsmarker.com/. Used under Creative Commons Attribution-Share Alike 3.0 Unported, see https://mapicons.mapsmarker.com/about/license/

GovHack

It's not what it sounds like! Rather, it's an annual weekend-long event promoting the use of open government data. The website says it best: "GovHack is an event that draws people together to innovate with Open Government Data. The best teams have a mix of skill so we encourage every one to come along including entrepreneurs, developers, designers, digital media creators, artists, story tellers, researchers and open data enthusiasts." It's sponsored by many government departments and other organisations with interests such as the RAC - Rubber Side Up won the RAC Safe Mobility Prize in 2015. This is just one GovHack project - definitely check out the other entries, and support it in any way you can to produce more projects like this.

About me

This website was created by me, Daniel Wedge. I'm a programmer and researcher working in computer vision, machine learning and visualisation who likes to get around by bike. You may have seen in the news that I work at UWA but I'd like to emphasise that this is independent work I started at GovHack and now continue in my spare time - the analysis, comments and opinions are my own, not my employer's.

Contact

Thanks for your emails, keep them coming! If you'd like me to email you when I update this site, or if you have any comments, criticism or suggestions, email me at ouch (at) bikecrash (dot) info