Electrify
Senior Member
For my 3rd year of Urban Studies, I was required to do a research project based on a question I had about the city and its citizens. One thing which I always did wonder about was how far people were people willing to walk to transit, especially in regards to Toronto's proposed light rail lines. We spend all this time on our keyboards debating on whether the standard 800-1000m is acceptable, or whether the proposed 400-500m is best, but what about the people who will actually use the service? Should they not have a say as to whether speed or accessibility should be the focus?
Now that I've had a month to relax from class, I wanted to share my paper with you. I will admit that it is not my best work (took longer than anticipated to get the results, lots of other projects happening meant much of this was done the night before, etc), but it has some very unique insight in how we should move forward...
Continued in next post
Now that I've had a month to relax from class, I wanted to share my paper with you. I will admit that it is not my best work (took longer than anticipated to get the results, lots of other projects happening meant much of this was done the night before, etc), but it has some very unique insight in how we should move forward...
Abstract
As Toronto continues to grow in population, alternative modes of transportation must be established to ensure economic and social sustainability. One key strategy the city is using is to invest in a light rail transit network, which while a step up from the established local transit network, has been positioned below the subway network in terms of speed and efficiency due to purpose design choices. These choices are based on the assumption that passengers would not choose to walk further to faster service, among other factors. This research project attempted to test these assumptions, and discovered they were highly flawed.
Introduction
The Greater Toronto Area in recent years has increasingly become characterized by its long commute times. According to Statistics Canada, Toronto has the longest commute times of any major metropolitan area in the nation at 33 minutes (Turcotte, 2011) to 41 minutes (Metrolinx, 2008, p.59) each way. Meanwhile the Toronto Board of Trade (2012, p.51) compared a round trip commute of 66 minutes with 22 cities around the world, and found that Toronto placed 15th overall.
These numbers are even more discouraging when comparing public transit to the private automobile. While unable to find an international comparison of commute times by mode, when looking at the 3 largest metropolitan areas in Canada, Toronto’s average was 49 minutes by transit compared to 29 minutes by car. In comparison, Montreal’s commute times were only 39 minutes by transit compared to 30 minutes by car (Turcotte, 2011), thus making transit a far more attractive alternative to driving.
Not only do these long commutes affect our quality of life, but also our economic prosperity. The government conducted a study to determine the effects of long commutes on our economy, and found that congestion cost the region $6 billion in current and potential economic opportunities (Metrolinx, 2010, p.1).
In an effort to control commute times and congestion in the Toronto region, the government is investing a considerable amount in public transit infrastructure expansion. The project entitled The Big Move calls for over 1200km of regional and rapid transit lines, and ensuring that over 80% of the population lives within 2km of said lines. Part of The Big Move’s rapid transit plans for Toronto calls for light rail transit (LRT) lines along a number of corridors, including Sheppard Avenue East, Finch Avenue West, and across Eglinton Avenue (Metrolinx, 2008, pp.58-60).
One point to be critical about however is what exactly the definition of “rapid transit†is. For The Big Move, Metrolinx has defined rapid transit as the following: “Transit service separated partially or completely from general vehicular traffic and therefore able to maintain higher levels of speed, reliability and vehicle productivity than can be achieved by transit vehicles operating in mixed trafficâ€. (Metrolinx, 2008, p.89)
However, other factors must come into play in evaluating the performance of rapid transit besides traffic segregation. One such factor, arguably even more important than traffic segregation, is stop spacing. Additional stops along a transit line decrease the average speed of the vehicle, thus increasing the amount of time needed to travel the length of the line (MacKechine, n.d.).
It should be noted that many of these terms used to define rail transit are more conceptual in meaning than definitive. For example, the American Public Transit Association (1994) defines that rapid transit cannot come into any contact with any other mode of transportation and that streetcars and light rail as the same thing. However their Streetcar and Heritage Trolley site (n.d.) does provide a clearer definition between streetcars and light rail, using features such as stop spacing to differentiate the two services. Likewise, some rapid transit systems do incorporate at-grade crossings, such as some of Chicago’s ‘L’ lines. In fact, these lines are no different than Edmonton’s LRT line, which also operates away from all traffic except for protected crossings (Figure 1 and 2). The point being made is that rail is rail, and that these terms define their operation rather than their technology.
Figure 1: Chicago ‘L’ at-grade crossing (Testagrose, 1970). Figure 2: Edmonton LRT at-grade crossing (Parsons, 2000).
For the light rail lines proposed for Toronto, a computer simulation was conducted to determine the most appropriate stop spacing. They determined that placing stops every 400m was best, as the speed would be 22-23km/h average versus 26-27km/h average at 800m due to longer loading times, increased walking distance, and red lights. For reference, the subway network’s average speed is 30km/h (City of Toronto, 2008).
It is of my opinion that the conclusions of this study have not been properly critiqued. To start, these LRT lines are to offer off board payment, therefore any extra time required to load more passengers should be minimum. Secondly, with proper signal priority red lights should be virtually non-existent. Because of these factors, I believe that 26-27km/h is a severe underestimate of these lines’ potential average speed.
These lines are being positioned as an intermediate transit solution between subways and buses, when the fact is most LRTs are designed to be in the same class as subways and rapid transit, simply with more flexable rolling stock and operation.
Finally, how much input was taken from the community about their opinion on the proposed stop spacing? As pointed out above, Toronto’s transit commuters have to endure the longest commutes in the country, on a far less competitive system compared to Montreal. Therefore the purpose of this research project is to determine if transit riders along future LRT corridors would prefer a faster service in favour of longer walks.
Literature Review
So what is the ideal walking distance, commute time, and distance between rapid transit stops? While it depends, much has been written and researched on the topic by planners, scholars, and government transportation agencies.
Transit planner Christopher MacKechnie (n.d.) suggests that stop spacing should be between 800-1600m, depending on whether the focus should be on speed or coverage. However he recommends a focus on the latter to promote better urban development and reduce the need for parallel bus service. Therefore even at the minimum stop distance for rapid transit, these lines could still achieve their planning goals while providing much faster speed than what is proposed.
Another transit planner, Jarrett Walker (2010), recommends that rapid transit stops should be about 1000m apart for similar reasons set out by MacKechnie. In fact, he goes as far as to suggest that 400m – the same stop spacing proposed for Toronto’s LRT lines – should be used for local transit operations rather than rapid transit lines.
In fact in Walker’s book (2012, pp.67-71), he asks the reader to imagine if all main transit routes had stops spaced every 800m, arguing that we may be overestimating the need for local service. Local service could operate infrequently along these lines to provide service to those unable to walk longer distances. However he does question that perhaps having stops every 400m with improved operating measures, which is very comparable to Toronto’s LRT lines, could provide a compromise all-in-one solution.
Research studies have also concluded similar results in terms of walking distance to rapid transit. One qualitative survey which looked at west coast cities found that rapid rail passengers walked approximately a half mile to their local station (Agrawal, et al., 2008). A similar study conducted in Calgary found that the average walking distance to suburban LRT stations was 649m, with the 75th percentile at 840m (O'Sullivan & Morrall, 1996).
A comprehensive study was also conducted for the World Symposium on Transport and Land Use Reseach examined walking distances to local bus and regional rapid rail stops. In the end, they found the average walk to a local bus stop was 461m and to the train station was 805m (Daniels & Mulley, 2011).
Other scholars have taken these numbers as a basis for their articles as well. Rodrigo Fernandez (2010) did an article based on simulating transit stop traffic, and listed LRT stops to be 600-800m, with local trams being between 400-600m. Therefore according to this definition, most of Toronto’s LRT lines would qualify as streetcars.
In terms of appropriate commute times, Marchetti’s Constant (1994) has become the defacto standard in understanding our tolerance to commuting. He argues that for all of human history, we have endured an average of a 30 minute commute time. But as transportation technologies improved, so too did the size of our cities. However despite being held up as the standard, I believe there is much room for criticism to his findings. For example, those who endured 30 minute walks to work before and during the Industrial Revolution, was this because they wanted to walk this distance or because they could not afford to live closer to their place of work? And seeing as most guidelines suggest humans have a walking distance of 400-800m, or 5-10 minutes, does this mean that we have reduced our comfortable walking range, established by thousands of years of evolution, to a third of what it was in a little less than 200 years thanks to passenger trains and the automobile?
Finally, it is important to look at what actual transit authority guidelines are for walking access to higher order transit. Some examples include Calgary at 600m (Calgary Transit, 1995), at least 800m for Minneapolis (Metropolitan Council (Minneapolis), 2010), and 800m in San Francisco (Bay Area Rapid Transit, 2003).
The point being illustrated here is that it is questionable to construct a light rail line with stops every 400m, and have it qualify as “rapid transitâ€. As previous case studies, expert opinions, and official plans have demonstrated, light rail stop spacing at about a half mile can provide quick transportation while remaining accessible, thus adding to the line’s attractiveness.
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