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BRT vs. LRT

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I thought @drum118 's excellent analysis deserved its own thread instead of getting buried in the Sheppard subway one:

BRT vs LRT
Over the years there have been great debates as to what is the best type of system between BRT (Bus Rapid Transit) or LRT (light Rail Transit) better known as streetcars.

Both systems have their strong points was well weak points.

One thing that get noticed more than it should, is the up front cost to build a BRT system. There is more to font end cost that needs to be looked before deciding BRT is the way to go.

It is a provident factor that BRT up front cost will wins hands down when it come to cost to built either systems, but will it do the job overtime?

One thing that needs to be looked at is the labour cost of each system as Labour eats ups 80% of operation cost and will only increase more over time. Therefore we must look at ways have to save manpower/labour to meet this growing trend.

One has to be careful as how they class a BRT from express buses. Unless a BRT is in its own ROW (Right-of-Way) like LRT, it is an express bus making limited stops using priority traffic signalizes lights. This also applies to LRT in mix traffic.

The one thing that never taken into consideration for buses or express buses is the cost to build or maintain the roads they run on as an express bus. It is the same thing when you try to compare buses to streetcars that run in mix traffic. Streetcars have to factor in the cost to build and maintain the tracks they run on even though all type of traffic use it also.

The operation cost is where LRT comes out ahead cost wise as you need less manpower to carry the same number of riders as a bus. Also, people prefer to ride steel wheels than rubber wheel, as steel wheels provide a smother ride in the first place.

Below, I have done an analyze between BRT and LRT based on a 30 year cycle starting at 2010 to 2040. I have used 60 foot articulated and 40 foot buses for BRT while use a 30m off the shelf LRT for comparison. The price is based on the current cost for the buses been received this year by Mississauga Transit.

I have also used rider standard of 70 for articulated buses, 52 for 40 foot bus and 125 for LRT. I have used single LRT to 3 car units to help to arrive at the number of vehicles needed to carry various ridership from a single point as well the headway they will run at for the point load.

I have used 3% as a yearly cost increase as to wages and 1% for the cost to purchase vehicles.

I have not taken into consideration the cost of extra employees need to be added as you add more vehicles to the fleet as it various from systems to system as well the rate of pay. You need to add a cleaner, body worker, mechanic, route supervisor and office personal to cover these extra vehicles.

I have used a hour rate for peak time based on a 40 hour week and 52 weeks for the year. I have not allow for holidays or cut in service during the summer months. I have not allow a cost to cover all the extra employees that will be need to put the vehicles on the road.

If a driver earns $60,000 that includes all benefits and holiday pay today, by 2040 they will be earning $145,636 a year, based on a yearly 3% increase. They will have earn a total of $3,000,161 over those 30 years.

The cost of the vehicles will be varies from system to system due to the size of the order and type of equipment been spec.

Carrying capacity​

Ridership or carrying capacity of a vehicle is base on a square of 19 inches per rider and this become an major issue between planners and riders. This square would be correct if we live in a world where everyone is the same size, wear the same cloths and carry nothing onto the vehicle, but that not the case.

We live in different parts of North America where some require of us have to wear heavy coats during the winter months while other wear light jackets.

We all carry something from packsack to computers along with our goods, food, drinks onto the vehicles.

It has been claimed that 60 foot articulated buses have a crush load capacity of 125, yet based on my experience of riding them, the maximum number has been 105 during the summer month and that was very rare to see. You are lucky to see 100 riders at crush load. During the winter months, you are lucky to get 90 riders on it. Then, crush load is not the way to attract people to use a transit system in the first place and we must set ridership numbers per vehicle to make it more easy to get off or on to attract them in the first place.

As for 40 foot buses, 100 is the claim number for crush load, yet the most I have seen is 85 where people were sitting on riders laps.

I have said that the peak load of an articulated bus at Peak time is 70 at the highest loading area or point of a route, allow room if something happens along the route not plan for. This mean 55 riders will have a seat leaving 15 people to stand. The peak load for a 40 foot bus is 52 allowing 38 rider to sit and 14 to stand.

For off peak service, the carrying capacity of an articulated bus is 45 and 30 for a 40 foot bus.

Where these numbers can go out the window is when you are carrying an accessibility person, a person with a walker or strollers. Strollers are a major issue as they come in all sizes and shapes. It not bad when you have one on the bus, but anymore than one causes all kinds of problems and eat up that spare room.

Therefore for this analyze, I am using 3,000 riders from a single point. I have other data up to 10,000 riders from a single point and that information can be found in a spreadsheet Here.

Ridership​

Even though I am using 3,000 from a single point for my analyze, we need to adjust that number over time as more people use the system. I will use 2% year increase to see what the numbers will be by 2040. There is no guarantee that this will happen as some routes reach a certain number and will remain the same year after year, but lets take a look what 2% increase will do anyway.

Starting with 3,000 in 2010 and using the yearly increase of 2%, we will see 5,434 riders by 2040. That will have a higher impact to the final cost than the 3,000 figure I am using for this analyze.
 

Number of vehicles require​

Since we know the load factor is 3,000 as well the carrying capacity of each vehicle, we can determine the number of vehicles require base on their size. The number of vehicles will also tell us the number of driver that will be require to move these vehicles. The number say we will need 43 articulated buses or 58 40 foot buses and 24 single LRT or 12 2 car unites.

Headway between vehicles​

Now we know the type of vehicles as well the number of them, we can now determine the headway between vehicles. The headway for 43 articulated bus is 84 seconds or 1.84 minutes. 58 40 buses will be 62 seconds or 1.05 minutes. For 24 single LRT, headway is 150 seconds or 2.5 minutes. If we run these single LRT as a pair, headway becomes 300 seconds or 5 minutes.

One thing we have to look at when it comes to headway is the amount of dwell time to off load and load these vehicles. The more you have off loading and loading, the longer the dwell time will be and how long it will take for that vehicle to move so the next one can get into the spot. The shorter the headway becomes, the greater the changes you will start to see vehicles bunch up at stop and create the convoy effect.

Riders themselves play a large part in this backup by not having their fare ready to board the vehicle. This cause a backup for riders trying to get on the vehicle and increase the dwell time. Going to a POP (Proof of Payment) system will allow faster loading time as you can use all the doors of the vehicle.

Cost of vehicles​

I am using this year 2010 order of vehicles by Mississauga Transit as my base cost factor starting point and will use 1% yearly increase to arrive at the final cost for a 30 year life cycle for them. This can only be a guide as the cost of the vehicles over the 30 year cycle depend on many thing as to who the system is, how many been order, what the market is like at the time of order and etc.

To date, both Mississauga Transit and OC Transpo in Ottawa, Ontario, the 2 largest system of articulated buses in Canada have not been getting the 12 years of service with their low floor models. They are only getting 10 years of service out of them and this has an effect on the final out come cost wise based on when they are order.

$717,525.13 is the current cost of an articulated bus and at 1% yearly increase of cost, it will cost $967,115 by 2040. Using the 10 year life cycle, buses will have to be replace in 2020 and 2030. Therefore, it will cost $101,903,235 for the 30 year life cycle or $104,447,868 if the buses make their 12 year cycle for the years of 2022 and 2034.

Using a straight 40' bus starting at $525,425.15 today and replace every 12 years, it will cost $708,904 come 2040. Since we need 58, we are looking at a total cost of $152,784,185 for the 30 year life cycle.

If we go with 40' hybrid buses in place of standard buses, we are looking at today cost of $779,688.70 each and will cost $1,050,903 by 2040. The cost of 58 hybrid for the 30 year life cycle is $141,871,029. We now must add the cost of the battery that have to be replace every 5 years. Using a cost of $65,000 for today pack, it will cost $87,610 come 2040. It will cost $371,449.07 per bus to replace the battery over the 30 year cycle for a total cost of $19,899,057. This make the total cost of the hybrid bus at $174,213,939.

Base on a today price of $4,000,000, an LRT will cost $5,391,396 by 2040 at 1% yearly increase in price. It will cost $96,000,000 for 24 LRT plus an extra $4,2000,000 for mid life overhaul for a total price of $100,200,000. for a 30 year life cycle

Driver cost to drive the various type of vehicles​

We know it cost $3,000,161 for a driver over the 30 year life cycle using a 3% yearly increase. The driver cost is based on peak time only service for a 40 hour week and 52 weeks for the year.

Again, various systems have different hours that drivers work a week and you may need more than one driver for that peak service and I have taken that into consideration using the 40 hour week.

At the same time, various systems have different length of peak service time and decided to use 4 hours in the morning and afternoon for this analyze.

It will cost $383,420,707.19 to cover the cost of drivers to drive 43 articulated buses.

It will cost $479,275,877.73 to cover the cost of drivers to drive 58 buses.

It will cost $292,793,990.76 to cover the cost of drivers to drive 24 LRT.

It will cost $146,396,995.38 to cover the cost of drivers to drive 12 pair of LRT.

Total Cost​

BRT Articulated bus​

43 Driver cost: $383,420,707.19

43 buses: $104,447,868

Final cost $487,868,575.19

BRT 40' bus​

58 Driver cost: $479,275,877.73

58 buses: $102,959,878

Final cost $582,235,755.73

BRT 40' Hybrid bus​

58 Driver cost: $479,275,877.73

58 buses: $174,213,939

Final cost $773,489,816.73

Single LRT​

24 Driver cost: $292,793,990.76

24 LRT: $100,200,000

Final cost $392,993,990.76

12 Double LRT​

12 Driver cost: $146,396,995.38

24 LRT: $100,200,000

Final cost $246,596,995.38

Summary​

If we look at using 24 single LRT vs. 43 Articulated BRT, there is a cost saving of $487,868,575.19 minus $392,993,990.76 for a total saving of $94,874,584.43 going LRT.

If we look at using 12 double LRT vs. 43 Articulated BRT, there is a cost saving of $487,868,575.19 minus $246,596,995.38 for a total saving of $241,271,579.81 going LRT.

If we look at using 24 single LRT vs. 58 BRT, there is a cost saving of $582,235,755.73 minus $392,993,990.76 for a total saving of $189,241,764.97 going LRT.

If we look at using 12 double LRT vs. 58 BRT, there is a cost saving of $582,235,755.73 minus $246,596,995.38 for a total saving of $335,638,760.35 going LRT.

If we look at using 24 single LRT vs. 58 Hybrid BRT, there is a cost saving of $773,489,816.73 minus $392,993,990.76 for a total saving of $380,495,825.97 going LRT.

If we look at using 12 double LRT vs. 58 Hybrid BRT, there is a cost saving of $773,489,816.73 minus $246,596,995.38 for a total saving of $526,892,821.35 going LRT.
 

Hourly Rate​

We can look at the cost of LRT vs. BRT by looking at the hourly rate to put a vehicle on the road. This cost cover all personnel and equipment to put a vehicle on the road in the first place. At present time, I am using $110 per hour for buses as this is the current rate. To put an LRT on the road, we are looking at about $150 per hour. Using .15% yearly increase in hour rate over the 30 year cycle, the hour rate for buses will be $171.94 while LRT will be $236.46 come 2040.

Based on the hourly rate over 30 years for 40 hour a week and 52 weeks for the year, 43 articulated buses will cost $383,420,702.19 and LRT will cost $292,793,990.76. Again we still see a saving of $90,626,711.43 using LRT.

If we look at 58 buses vs. LRT, we get a cost of $516,143,252.94 and a saving of $223,349,262.18 using LRT.

Fuel Cost​

Today no one knows what the cost of fuel is going to be over this 30 year cycle and that will have a great impact on the type of vehicles that will be on the road during this time.

Diesel fuel is running about $.89 a liter today while hydro is about $.06 a kw. A diesel bus get about 7km per liter of fuel and there is no real data what the Hybrid are getting. An LRT use about 240 kw per hour or about $14.40/hr. Therefore we know that 24 LRT will cost $718,848.00 a year based on today price.

Manpower​

Each system has their own method how they add personal to their staff as they add more vehicles to the fleet and this another cost that needs to be taken into consideration for a comparison between BRT and LRT. Each system has their own wage standards and that becomes an issue to arrive at a cost. Using LRT system, you require extra personnel to look after the overhead system as well doing minor track work.

ROW​

Again, BRT ROW (Right of Way) is cheaper to build than and LRT and to find the cost to build, one we need to know a number of thing. How long is it?: are there tunnels and bridges to be built?: what about traffic?: lights; does land have to be purchase?: how far apart are the stations?; how big does the garage and storage are have to be? and the list goes on.

The rule of thumb is a BRT will cost between $15-$20 million per mile with very little in the ways of bridges or tunnels. This includes station. An LRT will cost about $35 Million per mile like the BRT and will require substation every few miles.

You can run both BRT and LRT without an ROW, but you are now dealing with traffic that will slow service down as well requiring more equipment to maintain the quality of service.

Doing a comparison in mix traffic for both system becomes an unfair evaluation between both system as BRT cost for roads is never taken into consideration while LRT has to cover the cost of building the tracks in the first place as well maintaining them.

To do an apple to apple comparison, we will only look at a true ROW.

Lets say the route is 12 miles, what is the cost of the 2 systems? BRT will be 12mi x $20m for a sub total of $240 million plus $200 million for a garage for a total of $450 Million. An LRT will cost 12mi x $35m for a sub total of $420 million plus $250 million for the carhouse for a total price of $670 Million. We can see there is an saving of $220 million going with BRT.
 

Land Value​

The one thing that gets over looked when doing a comparison between BRT and LRT is land use and value up turn.

We have seen in various cities in the United States over the last 10 years where new LRT and BRT systems have been built to see what kinds of changes they bring to the area they are servicing.

In all cases, there has been greater demand and land changes where LRT lines have gone in compared to BRT. BRT lines have generated $4 for every $1 that was invested in the BRT while LRT are seeing $10 or more for that same $1. At the same time, development starts faster with LRT than BRT.

People are prepared to walk a little further to an LRT than a BRT.

Not only LRT bring development faster to the area, it helps to transform that area into a more pedestrian area in all ships and forms. People are willing to sit at a cafe with an LRT running by it than one where an BRT because of the buses exhaust, let alone traffic.

One thing that is starting to show up more, people want to live close to an LRT as well in a smaller complexes than a BRT. At the same time, people are willing to use LRT more in the off peak time frame, than a BRT. Phoenix, who only just open their 20 mile line at a Cost of $1.3 Billion dollars at the end of December 2009, have seen their ridership exceeded not only the 12,000 daily ridership by the end of 2010, but the 20,000 figure by 2020 in 2011 by 45,000 daily. At the same time, 62% of the ridership is off peak which totally against the norm for ridership of any type of system in service today.

Land value has seen a 5% increase in the short time frame which some people don't like as it increase their tax level. That increase in tax level is off set by having more people moving to the area or city to help to spread the cost level over more people, than just a few.
 
Also from 2014, I believe this was published during the HMLRT TPAP.

1619653864885.png
 
Also from 2014, I believe this was published during the HMLRT TPAP.

View attachment 315849
A holistic comparison would include other options, like elevated metro. A lot of those ticks for LRT would move over to that technology. We could have fully automated operation, which is far better than having an operator on each LRV.
 
Drum, I know you wrote this ten years ago. To update it to today's planning horizon, I think we can expect that buses will be largely electrified if not in 5 years, almost certainly in 10, which narrows the gap. On operator cost, if BRT (or LRT for that matter) is operating in a dedicated ROW and with proof of payment, I think we'll start to see moves toward more autonomous/remotely supervised operation of vehicles. It would not surprise me to see such a move would actually lead to increased safety over time, as well as improved rider comfort.

To apply this logic, you also need to look at it through a NPV lens, or another approach that accounts for time-value of money. Upfront costs for LRT are a negative over long term operating cost for buses.

BRTs don't need to be built to the same standard as LRT. LRT requires more relocation of utilities, as well as larger stations due to longer vehicles. LRT requires SMF to be located very near the line, which might lead to higher land acquisition costs or less siting flexibility.

Elevated metro type service could achieve much better average speeds than street-running LRT. That would make it much more compelling for car switchers and achieve higher ridership. Applied to Hurontario-Main, it could easily have worked for 95% of the length, and gone around downtown Brampton (slightly to the west to reach GO) or justify the tunnel for the stretch downtown. Tunnel for an LRT that will otherwise be delayed by cars elsewhere doesn't make much sense to me.
 
Should also add, on the question about privacy for residents with elevated rail. I have seen an elevated rail line in Asia somewhere where the windows in the rail cars had electrochromic glass installed, and were programmed to make the windows on onr side opaque at specific points on the route for resident privacy. Ideally, you engineer the elevated rail line well in advance and keep in mind which floors will be most overlooked. Those would be ideal for common elements/amenity space (gyms, party room, etc). I also think separation is more important between two stationary buildings rather than a train that goes by at 70 kph. Riders won't have more than a moment to resolve what is going on in an apartment, while a peeping tom can fixate from a balcony across the way more easily.

 
I await the day that suspended monorails are installed above traffic lanes and dipping down to ground level at boarding platforms with boarding that could be done just on the sidewalk.
 
You can try this link to the BRT vs LRT spreadsheet.

Regardless if this is 11 years old and various changes to technology have taken place over that timeframe as well what coming down the road, BRT will still loose to LRT for moving riders at the end of the day.

As for elevated lines, it will still be too costly to built and operate compare to BRT or LRT, but most of all some need to be full blown Metro to the point of being DD trains. Speed only effect ppl going long distance compare to local where we are try to move to an work/live/play/shop/entertain area than the current 4 areas by themselves. PPL can see what exist along the route they travel on the surface that may cause them to stop and visit a place at a later date they saw going by compare to elevated on the subway.

Bottom line, elevated line will only happen if the road is wide enough to do so and that rules out most of Toronto streets.

As for cost to relocate underground service while building an LRT is the best thing that could happen as some are long over due to be replace as well needing upgrading to meet growth for the area or other areas.

I await the day that suspended monorails are installed above traffic lanes and dipping down to ground level at boarding platforms with boarding that could be done just on the sidewalk.
Got a long wait and most likely not in your time.
 
Got a long wait and most likely not in your time.
In our lifetime, I suspect transit will be turned on its head with AEVs. This whole BRT vs LRT discussion will seem very quaint. I'd say definitely within 15 years.
 

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