Protected bike lanes — or cycling paths that are physically separated from roadways to keep cars away from more vulnerable micromobility vehicles — are becoming increasingly demanded by a growing population of bike commuters in the US. And in one case, they’re finally being enabled by a surprising source: a cute little electric mini-street sweeper.
The pint-sized electric maintenance vehicle, known as a Westvac LS125, was the last piece of the puzzle missing for Ann Arbor, Michigan’s protected bike lane plan.
The city has hoped to create more protected bike lanes along its roadways by installing bollards or vertical separators. But the narrow lanes would have been too small for the city’s maintenance vehicles to navigate.
Bike lanes, like roadways, require frequent street sweeping to rid them of dangerous debris and obstacles. In fact, such maintenance is perhaps even more critical on paths used by two-wheeled vehicles.
The City Council voted unanimously this week to buy an approximately $250,000 electric mini-sweeper that would enable the city to finally install separators along bike lanes while still maintaining the road surface.
As Council Member Dharma Akmon explained to Michigan Live:
“The purchase is going to allow us to maintain the single-track bike lanes, and that has been an impediment to the installation of bollards. So, very quickly we’re going to be able to put bollards where there aren’t any.”
The 48″ wide (122 cm) mini-sweeper might not be fast at just 15 mph (25 km/h), but it’s built for work — not for speed.
The 62 kWh battery gives it a 9-hour operating time. That means it can work all day, then recharge at night with a standard J1772 connector for Level 2 EV chargers.
The city’s public works manager Molly Maciejewski described how the city’s recently installed bike lanes have suffered from constant encroachment by cars and trucks:
“Since installation, there have been issues with illegal access by vehicles in the bikeways. To combat this issue, the Downtown Development Authority wishes to install centerline delineators along the bikeways. Additionally, the city desires to install bikeways outside of the downtown that are narrower than 10 feet in width.”
As Akmon continued, the new mini-street sweeper is all that was preventing the city from moving forward with its current plan to create the separated bike lines that would keep cars away from bikes, scooters and other micromobility vehicles and their operators:
“In fact, the city has already laid out many of these dedicated lanes, but hasn’t been able to install the delineators because we don’t have the equipment to properly maintain the narrower lanes. The purchase of a new small sweeper will mean we can, in pretty short order, upgrade buffered bike lanes into protected bike lanes by installing the several hundred vertical delineators we already have in inventory and ready for deployment.”
That’s why miniature versions are critical for being able to carve off sections of roadways for bikes while still leaving access to maintain the quality of the road.
And so if my two passions of biking and mini e-machines can somehow be intertwined into a solution that benefits everyone, well that sounds like a perfect day to me.
When Ann Arbor gets their cute new mini-sweeper in, I’d love to have a go on it!
In all seriousness though, it’s great to see cities finding creative solutions for embracing safer cycling infrastructure. The fact that those solutions themselves are zero-emissions simply makes the whole thing even sweeter.
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Yadea, which has claimed the title of the world’s largest electric vehicle maker for seven years running, has just announced a new electric motorbike powered by the company’s innovative HuaYu sodium-ion battery technology.
Yadea has long dominated the electric two-wheeler and three-wheeler market globally, but has generally relied on both lithium-ion and lead acid batteries to power its vehicles in different markets.
The newly unveiled electric scooter uses Yadea’s recently introduced sodium battery technology, offering what the company says is outstanding performance in range, charging speed, and safety. Using the HuaYu Sodium Superfast Charging Ecosystem presented by Yadea, the battery can reach 80% charge in just 15 minutes, providing greater convenience for riders.
Yadea’s sodium battery has successfully passed more than 20 safety tests, many focusing on its resistance to fire and explosions under extreme conditions like punctures and compression.
Yadea’s new sodium battery offers an energy density of 145 Wh/kg and a lifespan of up to 1,500 cycles at room temperature, with the company rating it for a five-year useful lifespan. It also includes a three-year warranty for added assurance.
With excellent low-temperature capabilities, the battery retains over 92% of its discharge capacity at -20°C, making it well-suited for colder climates.
Sodium batteries present major advantages
Most electric vehicles used in the West, especially electric two-wheelers, rely on lithium-ion batteries for their high energy density. But sodium-ion batteries offer many benefits over traditional lithium-ion batteries.
Sodium is an abundant element on the planet and is easily accessible, unlike lithium, which is concentrated in specific regions and often expensive to extract. This abundance can make sodium-ion batteries cheaper to produce, reducing costs for EV manufacturers and potentially making electric vehicles more affordable.
Lithium mining also has environmental challenges, such as water depletion and habitat destruction. Sodium, on the other hand, can be sourced from seawater or common salts, offering a more sustainable and environmentally friendly option.
Sodium-ion batteries are less prone to overheating and thermal runaway compared to lithium-ion batteries. This makes them inherently safer for electric vehicles, reducing the risk of fires and improving consumer confidence in EV technology.
Sodium-ion batteries perform better than lithium-ion in cold climates. Lithium-ion batteries struggle with capacity retention in freezing conditions, but sodium batteries maintain efficiency, making them ideal for EVs in colder regions.
Sodium batteries still have challenges to overcome
While sodium-ion batteries are promising, they currently have a lower energy density than lithium-ion batteries, meaning they store less energy per unit of weight.
For EVs, this translates to shorter driving ranges for the same-sized battery. That’s especially important in electric two-wheelers like motorbikes and electric bicycles, which don’t have much extra space for storing bulky batteries.
However, advancements in cathode materials and battery architecture are quickly closing this gap, which Yadea has demonstrated. These sodium-ion batteries still can’t match the energy density of lithium-ion batteries, but as they continue to improve their energy density, the technology’s other major advantages provide encouraging signs for larger adoption in the industry.
Yadea’s status as a major electric motorbike maker also means that its adoption of sodium-ion battery technology could help lead the entire industry towards this battery chemistry, bringing safety and performance benefits along with it.
Last year I had the unique opportunity to visit one of Yadea’s global manufacturing sites.
To see inside the company’s massive and highly-automated manufacturing processes, check out the video below!
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At CES2025, the impressively built-out John Deere exhibit was all about automation. Autonomous job sites, autonomous farms … but it was this new, battery electric, autonomous lawn mowing robot that stole the show.
See, instead of using “just” GPS data or “just” repeating a pre-recorded run, Howard can do something in between. The way it was explained to me, you would ride the stand-up mower around the perimeter of the area you wanted to mow, select a pattern, then hop off, fold up the platform, and let it loose. Howard mows just the way you would, leaving you to focus on edging, planting, or (let’s face it) schmoozing with the clients.
It’s exactly the sort of help landscapers are looking for.
But that should come as no surprise, of course. John Deere, perhaps more than most companies, knows its customer. “We’ve been in the turf business for 60 years — it’s a core part of Deere,” says Jahmy Hindman, chief technology officer at John Deere, explaining things beautifully. “The work that’s being done in this industry is incredibly labor intensive … they’re not just doing the mowing work. They’re doing the tree trimming, maintaining flowerbeds and all these other jobs. The mowing is table stakes, though, for them to get the business. It’s the thing they have to do in order to get the higher value work.”
The John Deere autonomous commercial mower (there’s no snazzy alphanumeric, yet) leverages the same camera technology as other Deere autonomous machines, but on a smaller scale (since the machine has a smaller footprint). With two cameras each on the front, left, right, and rear sides of the little guy, he has a 360-degree view of the world and enough AI to lay down a pattern, avoid an obstacle, and shut off if it thinks it’s about to mow down something (read: someone) it shouldn’t.
John Deere will have Howard on display through tomorrow at CES in the LVCC’s West Hall. If you’re in town, be sure to go say hi.
Despite big discounts and 0% financing, Tesla sales are down for the first time in a decade … but there’s even bigger robot news with the return of Honda ASIMO, a flying car from China, and a whole lot more from today’s episode of Quick Charge!
CES2025 was all about AI – and not just what AI could do, but what AI could do for you. That’s where ASIMO comes in, helping everyone have a better time in there car and not at all just a modern day version of KITT dreamed up by a bunch of Gen X executives (wink, wink). We also cover some neat stuff from Suzuki, Aptera, Volvo, and more. Enjoy!
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