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WA Transport General Discussion & Questions - 2017

Perth / Western Australia Transport Discussion

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Re: WA Transport General Discussion & Questions - 2017

Postby tonyp » Wed Aug 09, 2017 7:38 pm

Is there any data set available showing the modal split of users interchanging to and from trains at Perth railway stations? I've heard that the feeder bus modal share (vs driving, walking and riding) is quite high but I can't find any statistics to verify this.
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Re: WA Transport General Discussion & Questions - 2017

Postby Mr OC Benz » Wed Aug 09, 2017 9:45 pm

Not really. Like with patronage data, you find this sort of info in dribs and drabs in planning documents mostly.

I think the rule of thumb is that it is generally a 50/50 split bus vs other modes (with other dominated by car mostly). Of course this varies by station.

The new Aubin Grove Station for instance has 2000 car bays and a projected usage of 3900 pax per day. Ironically, within the first couple of months of opening, the PTA had to expand the bike shelters from 24 spaces to 76 spaces to cater for overwhelming demand inconsistent with typical usage across the network.

I believe Murdoch is the biggest or one of the biggest interchanges in terms accessing train services from the bus.
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Re: WA Transport General Discussion & Questions - 2017

Postby tonyp » Thu Aug 10, 2017 6:23 am

Thanks. I saw a document somewhere that said that about 40% of station turnups in Perth were by bus but I can't locate it again. I would have thought that, like in other states, it would be possible for PTA to use Smartrider data to do detailed station by station analysis.
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Re: WA Transport General Discussion & Questions - 2017

Postby Shoudy Chen » Thu Aug 17, 2017 7:42 pm

I have hopped on a O405NH Natural gas bus that ran on Transcom (Route 960) from Curtin Uni to the city. TP1772-1796 are allocated for Transcom gas while TP1797-1819 ran on Westport Gas system. The sound of the Transcom CNG was different compared to the Westport gassies. I thought that the Westport system used a different engine than the Transcom.
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Re: WA Transport General Discussion & Questions - 2017

Postby Merc1107 » Mon Aug 21, 2017 12:23 am

Shoudy Chen wrote:I have hopped on a O405NH Natural gas bus that ran on Transcom (Route 960) from Curtin Uni to the city. TP1772-1796 are allocated for Transcom gas while TP1797-1819 ran on Westport Gas system. The sound of the Transcom CNG was different compared to the Westport gassies. I thought that the Westport system used a different engine than the Transcom.

The engine is the same. There are some differences and similarities in the engines, but at this point, both types have a throttle-body CNG Injection system fitted. You can usually hear the injectors ticking. The original factory setup from Mercedes was naturally-aspirated (N/A), with a non-injected gas mixer with an electronic idle circuit.

Biggest difference on the Transcoms is the addition of a turbocharger. The purpose of the turbocharger, I'm told, was to preserve the engine's power, as the Transcom system ran a lean-burn configuration as a means of reducing exhaust emissions (Euro III compliant?). Make of that what you will - the Transcoms seem no faster or slower than their counterparts.
Another feature I've been told of, which has since been disabled, is a system that deactivates three cylinders at idle. There may be other key differences I am not aware of.

1797-1819 have all seemingly received the Westport CNG Injection system. This is setup is relatively similar to what was fitted to the CNG O405 high floor buses later in life to combat poor performance - although I'm not sure if this batch are really any better than they used to be. This conversion was done around 2012 when these buses had their mid-life refurbishment, whereas the Transcoms were converted very early on.

It is worth noting that the entire batch were once held by PATH Transit. 1797-1819 were gradually sent to Fremantle during 2008 or thereabouts based on the delivery of low-floor buses at the time.
I personally recall seeing these for the first time around June/July 2008 and being quite confused as to their origins, being a youngster. :lol:
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Re: PTA / Transperth & Private Observations - Sep/Oct 2017

Postby tonyp » Fri Sep 29, 2017 9:41 am

Review of new Volgren CAT bus. I didn't know the CATs are funded out of a parking levy - good move.

https://www.busnews.com.au/bus-reviews/ ... -route-bus
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