Category: Safety

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Commissioning Construction Facilities and terminals Rapidways Safety Stations Technical

beautiful curves of glass

If you’ve ever had to replace a window in your house, you know that working with glass is fiddly, exacting work. It needs to fit perfectly or you’ll get drafts and leaks. Glass has no tolerance for being the wrong shape or size. And dropping a pane from a window: well, that means another trip back to the store.

Now, imagine the challenges of installing the glass on the curves of our new Vaughan Metropolitan Centre [VMC] rapidway station. As you can guess, it was a long, multi-stage process, done with great care and precision.

strength and safety

As with all our vivastations, the VMC glass was laminated and tempered for strength and safety. First the glass was cut into panes, and then it went through a special process to make it extra strong. This way, if it breaks, it crumbles into small granular chunks instead of sharp pieces.

To add more strength and make it even safer, we then laminated the tempered glass by sandwiching two glass sheets together around an interlayer. If the glass is broken, the interlayer holds the small pieces together instead of breaking into many little shards, the same way a car windshield stays together in an accident. The interlayer on the blue skylight glass is actually a different, stronger material than the interlayer used for the clear side glass, since the top skylight needs to support heavier loads from snow and maintenance workers.

creating curves

Fitting flat glass to the curved shape of the station was a challenge, because every surface of the steel roof curved over two dimensions, much like the outside of a ball. The first step was to divide the glass into a series of triangles. Three-sided shapes are easier to work with compared to four-sided shapes, the same way a tripod is more stable on uneven ground compared to a four-legged chair.

But this still left the challenge of fitting flat pieces of glass over a curved frame. The solution here was to adjust the bolts on the corners of the spiders [the stainless steel fittings that hold  the glass pieces onto the frame] so they’re each set at a different height. We knew how high each bolt needed to be from 3D scans, so we adjusted them before we installed the glass. By installing each corner of glass at a slightly different height, we recreated the curves of the tubular steel frame.

intricate jigsaw puzzle

The last step was putting the glass panels in place, one by one. Although they were all triangles, every piece was unique like pieces of a jigsaw puzzle, so to avoid mix-ups they were carefully numbered before they were delivered. Once the glass panels were bolted onto the spiders and the final adjustments made to perfect the curve of the glass, we sealed the gaps with caulking to make the structure weather-tight.

Building this strong and beautiful glass-covered station took precision, but look at the stunning results! This landmark station helps set the architectural stage for future development at the VMC and makes the everyday experience of transit a beautiful one for our customers.

Categories
Commissioning Construction Facilities and terminals General Rapidways Safety Stations Technical

the concrete choice

If you’ve ever renovated your home, you know about the endless options for flooring: tile, wood, carpet, stone. Once you select your material, you have to make more choices about colour, finish, how it should be arranged, even the kind and colour of grout. So many decisions! Of course, as with all design questions, your choices are shaped first and foremost by the space and its function: wet or dry? Formal or casual? How much wear will it get?

the floor dilemma

Our design teams faced similar quandaries when working out the details for the rapidway platform floor of the new Vaughan Metropolitan Centre Station [Viva bus rapid transit].

All of our other open air vivastations have tiled platform floors, so the obvious choice would be to use that in the new VMC Station. But this station faced an additional level of complexity, being built above the subway extension.

The top of the subway station extends to just under the vivastation foundation, providing limited depth to work with. Installing the tiles with concrete underneath as required would use up space needed for essential power and communications cables. A concrete floor became the ideal alternative.

durable by nature

Concrete flooring for the platform works better in the space we have, and the durability means less maintenance is required, saving money down the road. The VMC Station floor will be getting a lot of use in a relatively small space. We know concrete will perform.

But, we also want great aesthetics. Fortunately, concrete is also versatile.

Outside the station along the sidewalks of Highway 7 are paver stones laid in a distinctive pattern. Inside the station, we’re re-creating that look with concrete. First, we built the concrete molds to match the sidewalk, then poured each section with matching colours of concrete.

functions like concrete, looks like tile

Because the platform floor continues beyond the shelter of the vivastation canopy, we needed to ensure it’s not slippery. Before the concrete set, every concrete slab was given a hand-applied swirl finish to provide a measure of slip-resistance. We have also done decorative work on each section to create the appearance of tile.

Just like you’d want for your own home, the final result will meet design goals in every way: strong, durable, easy-to-maintain, and functional. And nice to look at, too.

 

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Announcements economic & financial General Live-work-play Safety Studies Urban Planning

home, safe, home in York Region

If you want to live in a safe place, come to York Region. York Region is one of the safer places in Canada to call home, according to Maclean’s magazine list of Canada’s most dangerous places to live.

low crime rates

The Region is well down the list at #201, making it the 30th safest area to live in.

The rankings come from a crime severity index, calculated by the type and frequency of crime: violence, drugs, theft/property and youth crime. York Region falls below the national average on every front, often far below.

See the rankings

strong communities by design

Low crime is just one of the many reasons our region is a great place to live, along with the Region’s thriving economy, impressive job growth and strong sense of community. In the future, we hope our Region will also be known for the strength of its rapid transit network.

At vivaNext, we’re fortifying the future of our communities with rapidways. Having a transit network in place is the ticket for transit-oriented development — smart growth designed with the new urbanism in mind. The vision is one of compact, walkable communities served by transit, where people want to live.

We know we need to be ready for our Region’s future population – we’re expected to reach 1.79 million residents by 2041, up from today’s 1.2 million. But we also want to preserve the essence of our communities that made them desirable in the first place.

streets for everyone

VivaNext rapidways come with streets for everyone: pedestrians, cyclists, drivers and transit riders. Attractive streetscapes and landscaping enhance the allure. The rapid transit projects foster mixed-use land development, increasing population density while reducing urban sprawl. These are the kind of communities that go the distance, designed to be strong, caring and safe for the long-haul.

 

Categories
Commissioning Construction Facilities and terminals Rapidways Safety Stations Technical

safety in waiting

Bus rapid transit (BRT) systems like viva use a variety of design features to make travel faster, but the primary feature is dedicated transit lanes that allow buses to bypass regular traffic. BRT systems around the world take different approaches as to where those lanes go. Some use separate lanes beside the roadway. Here in York Region, the vivaNext system uses median rapidways that run down the centre of the road.

median benefits

A major benefit of median rapidways is how they minimize conflicts with driveways and business access. However, this design requires passengers to wait for their buses in the middle of high-volume thoroughfares – such as Highway 7 West at the new Vaughan Metropolitan Centre rapidway station. Utmost consideration was given to design strategies that ensure the safety of passengers while they wait for their buses.

crash-load strength

The VMC Station’s most crucial safety protection are the white concrete barrier walls which run the length of the station on both sides, separating the waiting area from traffic lanes. With the wall’s white architectural concrete finish, curves that echo those on the station roof and tapering design that flows into the planters and ramps near the crosswalk, this wall is a key aesthetic feature of the new station. But don’t be fooled by its good looks: this wall is a brute.

It’s designed to withstand crash loads, the potential forces involved in a traffic collision. Crash-proof walls have to meet strict criteria on factors such as design, materials and construction. These specifications are set by Ontario Provincial Standards, and before we received approval to begin construction, every element of the design was scrutinized to ensure it met or exceeded those requirements.

standard scrutiny

Design standards dictate things like the height and thickness of the wall, how much rebar – steel reinforcements – is incorporated, how much it will weigh, and how the wall will be fixed to the base. Standards apply to the type of materials used for the concrete wall, the aggregate used to mix the concrete, the steel used in the rebar, even the coatings on the steel. Likewise, standards dictate the construction itself, ranging from how the concrete is cured to how edges are finished.

Although safety comes first, we made sure it looks good, too.

So now you know all the thought that went into protecting you while you wait for your YRT/Viva bus, we hope you admire the design of the station, relax, and enjoy this impressive new addition to the Vaughan Metropolitan Centre.

Categories
Commissioning Construction Going Green Innovation Safety Stations Technical Urban Planning

rain, rain, go away

Our new rapidway station at Vaughan Metropolitan Centre is ready for the rain, innately designed to handle a downpour and keep those pesky puddles off the road.

Large structures like the new bus rapid transit station shed a lot of rain during storms. With the size of the station’s roof, the volume of water collecting from even light rain storms would be enough to create some pretty major puddles.

Water management has been a key design consideration for the station since day 1. Letting runoff drain freely onto the roads isn’t an option since the station is right in the middle of Highway 7. Here’s the rundown on how we’re managing runoff.

Water management strategy includes features built into the station’s design, and the design of the road and storm water management systems around the station.

Gutters run along the curved station roof between the skylight and the roof panels, designed to collect and funnel water to the ends of the station. At that point, brow gutters – shaped like eye-brows – will drain the water into downspouts on the sides of the station, which then drain safely into underground catchbasins connected to the storm water management system.

But that’s not all! Water from the middle portion of the roof, below the roof gutters, will drain off the roof onto the road. Generally at our vivastations, the road design ensures water doesn’t become puddles.  A very gradual slope away from the station to the curb lane directs the water into a series of curbside storm sewers and catch basins.

However, the VMC station is so much larger than the other stations, there’s simply too much water to direct across the road. Instead, we drain the water closer to the station.

We’ve built up the road surface so that its highest point is 1.2 metres away from the station.  Water draining off the station will be naturally directed back towards the station, running along the curb into a series of catchbasins and into the storm sewers.

We know that rain gutters and catchbasins aren’t the most glamourous features of the new station, but on a rainy day, we’ll all be glad they’re there.

Categories
General Safety

a look forward >> fall and winter

a look forward >> fall and winter

We’re holding onto summer, but signs of fall are all around us. Kids waiting for buses in new jackets and boots, fall decorations in the stores, and even the geese are starting to head south.

We know many students walk and take our Viva buses to get to and from school, so we hope those who choose to drive remember to stay alert and keep an eye out for kids, especially at intersections and in construction zones.

Rapid transit construction continues this fall and winter in Newmarket, Richmond Hill and Vaughan. This December, students in Vaughan and at York University will have exciting new transit options, with Viva buses on the new Highway 7 rapidway taking riders to the subway extension – in service in December – along with a YRT bus terminal within walking distance.

Did you miss a few things on your back-to-school list? If so, be sure to check out the shops in our construction areas >> Shop 7, Shop Yonge, and Shop Bathurst & Centre!

 

Categories
Bridge Expansion Construction History Innovation Safety

a look back at the CN MacMillan Bridge expansion

As work starts up on the Highway 7 bridge over Highway 400, which is being widened to accommodate rapidway lanes and a multi-use path, let’s take a look at a completed bridge expansion project: the CN MacMillan Bridge.

The Highway 7 bridge passes over the CN MacMillan Rail Yard, the second-biggest rail yard in Canada.

The expansion project, which was part of the Highway7 West-VMC rapidway project, involved widening the bridge by 8.5 metres to accommodate the two lanes of rapidway that opened in February 2017.

Crews poured 4,000 tonnes of concrete to build abutment walls, piers, foundation and piles, sidewalks and decks; embedded 300 tonnes of reinforcing steel; and built a new pedestrian sidewalk and hand-rail and bike lanes!

All of the work expanding the bridge had to be done – and was accomplished – without stopping the trains or impacting the 10 sets of tracks. For safety purposes, before construction even began, crews had to rehearse set-ups and take-downs with numerous safety drills so it would proceed like clockwork.

During construction, crews worked very closely with CN to coordinate work around train schedules. An additional challenge was the fact that the rail yard, which handles one-million-plus cars per year, also operates 24/7.

Mega feats of engineering and construction like the CN Bridge project are beginning again with the expansion of the Highway 7 west bridge over Highway 400. Next month, we’ll take a look at the different components of work involved for this project.

For information on ongoing vivaNext projects be sure to sign up for email updates, and follow us on Twitter. Questions or comments? Comment below or email us at contactus@vivanext.com.

Categories
Construction Rapidways Safety

pedestrian safety

When there’s something on the other side of the street you need to get to, the nearest intersection might not seem close enough. It can be tempting to cross (or jaywalk) in the middle of the road. The problem with jaywalking is that it poses a risk to you as a pedestrian. Drivers aren’t expecting pedestrians in non-pedestrian areas, and may do something unexpected – or not brake in time – for you to cross the road safely.

During construction, crossing at designated crosswalks is even more important than ever. Lane closures can change frequently and when areas are blocked off, drivers must pay close attention to signs and road markings. Drivers might easily miss a pedestrian who is crossing or running into a non-pedestrian safe zone.

Even when crossing at a designated crosswalk, it’s important to keep safety in mind. Be sure to look both ways and stay aware. Put away your phone or tablet, and focus on the road. You should be constantly alert, just like the drivers.

For pedestrians, other safety concerns include the construction zones themselves. There are a lot of hazards around a construction site that you wouldn’t necessarily know about. We block off these work areas and create detours to protect drivers and pedestrians, so it’s important that you respect those boundaries for your own safety.

To keep up on what’s happening in the construction areas where we’re building rapidways, subscribe for email updates at vivaNext.com/subscribe.

Categories
Construction Safety

keeping our workers safe

keeping our workers safe

2017 is a huge year for the vivaNext program, with rapidway and terminal construction projects under design or taking shape in Markham, Newmarket, Richmond Hill and Vaughan.

Underlying all this construction activity is one constant priority: keeping the construction crews safe.  Obviously, our contractors aren’t unique in their commitment to safe work practices – worker safety should be a top priority for any organization. This priority is backed up with the force of law. With a few limited exceptions, every worker and work space in Ontario is required to meet the requirements of the Occupational Health and Safety Act of Ontario [OHSA].

Under the OHSA, all companies have to develop a health and safety policy, setting out management’s commitment to providing a safe workplace. To ensure this commitment is then followed up by action, the OHSA requires employers to develop and implement a safety program to implement the policy. Safety programs are required to address general safety precautions such as worker training, fire prevention and first aid, as well as procedures and requirements addressing the specific workplace hazards company workers may face.

At a minimum, vivaNext contractors are required to follow the OHSA rules, and to take all possible steps to ensure the safety of their crews. Supervisors and crews involved in roadwork are trained in safe practices working around heavy equipment and active traffic lanes, and on the precautions needed for work involving trenching. There are multiple and stringent requirements for work around utilities.

Safety on structures like our new Bus Rapid Transit [BRT] station at Vaughan Metropolitan Centre [VMC] calls for very extensive safety training. Workers working up high, like the welders, painters and crews installing the steel frame and glass, are trained in and must follow rigorous safety procedures at every step of their work. Explicit requirements are established to manage multiple activities being carried out in one area, to prevent workers accidentally encroaching into the space where other activities are underway.

Safe work requires every step to be planned in advance, and supervisors and crew are all expected to look out for each other, and to immediately flag anything they think might be unsafe. Any incident, no matter how minor, is carefully analyzed to identify potential lessons learned, to avoid it happening again. Everyone working on our projects, including our contractors, trades and all of us at vivaNext, is encouraged to point out anything they think might be a potential risk.

By empowering everyone to make safety their own personal priority, from the individual worker to the members of the senior management teams of vivaNext and our contractors, we can know that we’re doing our best to keep the crews who are widening our roads and building our stations safe and sound.

 

Categories
Accessibility Safety Technical Urban Planning

making corners work for everyone

making corners work for everyone

In civil engineering-speak, curb radius refers to the curve of the curb as it goes around a corner; sometimes it’s a wide gentle bend, and sometimes it’s a tight right angle. So here’s a question: when’s the last time you waited at an intersection for the light to change and actually even noticed the curb radius?  If you’re like pretty much everyone else, probably never.

And yet, believe it or not, the curb radius is one of the most important components of streetscaping, and has a profound influence on how drivers and pedestrians use a street.

As you already know, streetscaping refers to all the elements making up the public spaces along our streets. Because a key vivaNext goal is to make everyone feel welcome on our streets, whether they’re walking, biking, waiting to hop on Viva, or driving, we pay a lot of attention to streetscaping considerations. This includes the curb radii for every single intersection and entrance along our rapidways.

The curb radius describes the shape of a corner, such as when two perpendicular streets come together at an intersection, for example. The curb radius is expressed as a number, taken from the radius of the curve connecting the curbs of the two streets. On a wide suburban corner, the curb radius might be as high as 35, whereas on an urban street corner, it might only be 2.

Most urban settings, including along our vivaNext rapidways, aim for a smaller curb radius wherever possible.  That’s because the smaller the curb radius, the shorter the distance a pedestrian has to walk to get to the other side of the road. A smaller curb radius has other impacts too. It results in more space at the corner, including more space for accessible ramps. It makes it easier to line up crosswalks with connecting sidewalks.  It improves the sightlines for pedestrians and makes pedestrians more visible to drivers. And it slows down turning movements for vehicles going around corners, which is safer for pedestrians.

Of course, curb radius design also considers the needs of drivers, including traffic volume, vehicle size, and their desired speed going around corners. It also has to take into account bike lanes, on-street parking, bus stops, emergency vehicles, and other design requirements.  Whether or not the road is part of a truck route may affect the curb radius, because trucks need a larger turning radius to be able to navigate turns while staying within their lane.

Our final curb radius design isn’t up to us alone, of course.  Our designs reflect standards and requirements set by York Region and the municipalities as part of their broader planning for their regional and local road networks. Those requirements in turn reflect the design standards from a variety of authorities including guidelines from the Transportation Association of Canada and the Ontario Ministry of Transportation.

There’s a lot involved in the design of a simple concrete curb than you probably would have guessed. But the final result is for a more welcoming, safe and accessible streetscape for all users.