Congestion

and how to reduce it, and get people to use the train

content incomplete: last updated 3Nov2020

Table of Contents

Congestion is part of modern life and we can't get rid of it. We can only manage it.

So how do we manage congestion in land transport?

There are two general approaches: demand management and supply management.

Demand management is finding ways to change the time, place and method of the way we move.

Supply management is building more or wider roads (or railway lines)! The planners usually only consider roads. 

 There have been no route improvements on the main west rail line west of Penrith since 1910! In the 1920's the line was actually lengthened and had curves introduced! In that time almost the whole road between Penrith and Bathurst has been realigned!

What does the research say about congestion and how to solve it?

It boils down to this: if you have parallel road and rail corridors and want to reduce road congestion you invest in the rail line, not the road.
("It is clear that short to medium term investment in rail freight capacity could have a significant impact on the Strategic Road Network in terms of reduced congestion and other expenditure and should be considered in tandem with the assessment of road capacity." Source 

See also this source: Philippa Edmunds, from Campaign for Better Transport, said: “This research confirms what we have long argued, that integrated rail and road planning is the best way to reduce road congestion, collisions and pollution. It shows that on certain strategic transport corridors it is possible to improve road conditions without needing to add more road capacity.”)

Key points


A general lack of investment in land transport, in particular in rail, has reduced the incentives for motorists and freight companies to change their behaviours and reduce demand on the existing road infrastructure. 

Remember how, with the introduction of the internet, that many of us said that we would work from home, but didn't?

Well the Covid-19 pandemic, showed us that some of us really can work from home. 

Same with solving traffic congestion: we need to rethink the way we do things! We need post-pandemic thinking.

Sometimes the government acts against its own policies:

"Congestion Compounded":                                            
‘‘By incentivising high productivity vehicles, government is perversely derailing their own policy to grow rail’s mode share target at a time when Sydneysiders want safer roads and less traffic congestion and vehicle emissions,’’ he said. ‘‘All this is doing is adding more and more trucks to Sydney’s road network.’’ 

Practical Low Cost Demand Management Strategies to reduce road congestion
(or how to encourage people to use the train).

We all know that congestion is bad in Blackheath (and Medlow and Mt Vic) on the weekends, especially on Sunday afternoons (or Mondays on long weekends). It's also bad in Katoomba, Leura, Wentworth Falls .......(see bottom of page for more examples)

What to do? 

Conduct a comprehensive study of stakeholders, especially in Medlow, Blackheath and Mt Vic, to consider the strategies below:

First:  at the peak times of Sunday afternoon (or Monday of a long weekend) have a specific two hour period where the lights at the 3 towns are green for through traffic. This would mean that locals could not access the GWH. Each set of lights supervised  by Highway Patrol / TfNSW for emergency situations.

Then ...
What about congestion charging (scroll to the bottom of the page)?
or better still the reverse: offer incentives to take the train and NOT drive from Sydney to the Blue Mountains.

These strategies could be implemented soon and at little cost.
Encourage people to visit the Blue Mountains on weekends by rail:

What about on weekdays to cater for truck traffic?

This will allow businesses and residents to plan their day.

and on the other hand ... 

Introduce disincentives to road use, if necessary

Practical Medium Cost Demand Management Strategies to reduce road congestion (or how to encourage business and families to use the train)

People from the Bathurst area love "The Bathurst Bullet" so much that they are prepared to sit in a 25 year old suburban-style train, with hard seats sitting 5 across, travelling at 50km/h in some places to take day trips to Sydney.

Imagine how popular the new regional fleet will be with all (sorry some not all) of the "mod cons". They would even better if they had some of the facilities below.

This is what they do in Finland, (see Youtube video below) and in other countries in Europe.

Want to try it yourself? Go to: https://www.vr.fi/cs/vr/en/frontpage  and book a seat / section from Helsinki to Joensuu (which is like going from Sydney to Dubbo). See how quick the journey is. Note too that you can book family areas, working compartments, pet spaces, playrooms and so on. 

Then ask yourself "Would I take the train if they had those facilities on the Blue Mountains trains and new regional fleet?"


More examples of congestion on the existing road between Katoomba and Laptsone

Other countries

    UK:   Road vs rail: the route to decongestion 



Cost effectiveness of demand management.

The 6 most cost effective methods of reducing congestion are on the demand side: 

Source: Austroads 2015 Congestion and Reliability Review: Full Report,
Section 5.1 Intervention Framework Overview

Traffic congestion: is there a miracle cure? (Hint: it’s not roads) "Once a new road opens, people switch back to cars and congestion increases back to a steady-state point of gridlock. For lasting effectiveness, policy needs to include congestion charges and better rail services."

Do more roads really mean less congestion for commuters? "In isolation, building more roads can certainly improve traffic conditions but these effects may only be local and only in the short run. Congestion may become worse in other parts of the network and experience shows that spare road capacity is quickly filled up with new cars."

HIGHWAY BOONDOGGLES 5     Big Projects. Bigger Price Tags. Limited Benefits.

  

Technical Information on Congestion (from Wikipedia)

Braess' paradox (adding a road to a particular congested road traffic network  increases overall journey time.) The paradox has been used to explain instances of improved traffic flow when existing major roads are closed.

Downs–Thomson paradox ( increasing road capacity can make traffic congestion worse). Here is a good video explanation which has an urban focus but it explains that it is a universal: Youtube Not Just Bikes 

Jevons paradox (government policy increases the efficiency of a resource the rate of consumption of that resource rises due to increasing demand. Also known as induced demand)


In the longer term ... go to Strategies