Sunshine Coast speed limits

[somebody]

It seems that the Sunshine Coast line has a speed limit of 120km/h north of Caboolture for non tilting trains, and 100km/h Petrie-Caboolture in spite of that being a relatively straight and fast section north of the sharp bend on the north side of Petrie station.  I feel there may be gains from raising the speed limit and I don't see what holds this back.

Beeneleigh-Robina is very straight but limited to 140km/h.  I don't see why Coast Link suggested this should become 160km/h unless acceleration is also improved greatly.  The bit to Beenleigh is fairly windy, but if this could get faster that is where the gains would be for this line.

[colinw]

South of  Beenleigh is definitely suitable for 160km/h+ running, and I believe has actually had a 200 km/h+ run when the RTT was being tested (although the official speed record run was north of Bundaberg).

There were some minor gains when the Kuraby triplication came through as well, e.g. the 80 km/h curve between Fruitgrove & Runcorn was changed to 100, but this is insiginificant compared to the 60km/h reverse curves between Banoon & Sunnybank, Kuraby & Trinder Park and Woodridge & Kingston.  I don't see that there is much scope for easing any of those.  I think there may be a 40 km/h at Sunnybank as well?

[Stillwater]

I seem to recall travelling on a train between Caboolture and Elimbah shortly after the Caboolture-Beerburrum realignment was built and having an excited conductor's voice come over the public address system proudly declaring that passengers were travelling at 140 km/hr -- 'the fastest speed on the Citytrain network.'  There was no announcement of the 'slow speeed record' as the train travelled between Mooloolah and Eudlo.

[somebody]

I'd wonder if the bit through Altandi could be cut off.

If that bit Banoon-Sunnybank is 60km/h due to transitions, maybe the gentler of the curves could be straightened out.

Kuraby doesn't seem like it should be bad??

Trinder Park could be straightened out by going through about 10 homes.  Doh!!

[mufreight]

I'd wonder if the bit through Altandi could be cut off.

If that bit Banoon-Sunnybank is 60km/h due to transitions, maybe the gentler of the curves could be straightened out.

Kuraby doesn't seem like it should be bad??

Trinder Park could be straightened out by going through about 10 homes.  Doh!!

Aren't we are a little off track here, since when has BANOON, SUNNYBANK AND ALTANDI been relevant to the Sunshine Coast line?   

[Arnz]

It seems that the Sunshine Coast line has a speed limit of 120km/h north of Caboolture for non tilting trains, and 100km/h Petrie-Caboolture in spite of that being a relatively straight and fast section north of the sharp bend on the north side of Petrie station.  I feel there may be gains from raising the speed limit and I don't see what holds this back.

The speed limit north of Caboolture to Beerburrum is actually 140km/h for MUs.  It is 160km/h for tilts.  

Beerburrum to Glasshouse is 100km/h with 80km/h curves thrown in. (+5 km/h for tilts).

Glasshouse to Landsborough is 120km/h (150km/h tilts).

On a related note, the Narangba to Caboolture section used to be 120km/h for ICEs and IMUs at one point.  It has since been lowered to 100km/h for all MUs.

[somebody]

It seems that the Sunshine Coast line has a speed limit of 120km/h north of Caboolture for non tilting trains, and 100km/h Petrie-Caboolture in spite of that being a relatively straight and fast section north of the sharp bend on the north side of Petrie station.  I feel there may be gains from raising the speed limit and I don't see what holds this back.

The speed limit north of Caboolture to Beerburrum is actually 140km/h for MUs.  It is 160km/h for tilts.  

Beerburrum to Glasshouse is 100km/h with 80km/h curves thrown in. (+5 km/h for tilts).

Glasshouse to Landsborough is 120km/h (150km/h tilts).

On a related note, the Narangba to Caboolture section used to be 120km/h for ICEs and IMUs at one point.  It has since been lowered to 100km/h for all MUs.

Ok, thanks.

Adds weight to the Beerburrum-Glasshouse duplication proposal.

Isn't there grounds for increase speeds Petrie-Caboolture.

[HappyTrainGuy]

South of  Beenleigh is definitely suitable for 160km/h+ running, and I believe has actually had a 200 km/h+ run when the RTT was being tested (although the official speed record run was north of Bundaberg).

IMU's have been known to regularly push past 140kph and even 150kph in the sections past Caboolture and prior to the rock throwing speed restrictions past Beenleigh.

[somebody]

South of  Beenleigh is definitely suitable for 160km/h+ running, and I believe has actually had a 200 km/h+ run when the RTT was being tested (although the official speed record run was north of Bundaberg).

IMU's have been known to regularly push past 140kph and even 150kph in the sections past Caboolture and prior to the rock throwing speed restrictions past Beenleigh.

So, what is with the 140km/h speed restriction?