Its "Promoting Sustainable Transport Solutions for East African Cities" project aims to reduce growth in private motor vehicles, thus reducing traffic congestion and greenhouse-gas emissions.
The majority of the pollution is caused by vehicles on the road and experts say reducing traffic in the cities is the best way of improving air quality.
We tend to think of them as alternatives to traditional car rental, but companies like Getaround see themselves as social enterprises designed to serve the greater good by reducing traffic and air pollution.
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Another main road, north-west to Uganda, which should be one of Africa's great arteries, is pitted with craters often two feet deep, reducing traffic to little better than walking pace for stretches of 15km or so.
If the difference was substantial enough, more cars would postpone that trip to take advantage of the differential pricing, thereby reducing the traffic during prime drive time.
The queue has formed a tightening noose around the roundabout, reducing three lanes of traffic to the one that contains my dead Beetle.
By communicating with other cars, as well as with road signs and traffic lights, vehicles will not only be able to avoid most accidents, but will also move more smoothly through traffic, reducing congestion.
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In return, a team of officials from the Greater London Authority will work in Venezuela advising on recycling, waste management, traffic and on reducing carbon emissions.
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Congestion tolling saves motorists an enormous amount of time that would otherwise be spent stuck in traffic, thereby reducing stress, saving fuel, and making trip times much more predictable.
"While it would have raised the height of the building slightly, it would not have increased the stack height and it would have brought an overall benefit by reducing the amount of construction traffic, " he said.
The development of artificial intelligence-based approaches to junction control is one of many new and promising technologies that can make better use of existing urban and road capacity, while reducing the environmental impacts of road traffic.
But the traffic increase has slowed progress in reducing emissions further, and people in many areas still suffer from nitrogen-related air pollution, including small particulates that get sucked deep into the lungs, and ground-level ozone - a strongly irritant gas formed by the action of sunlight on reactive nitrogen.
Lots of comments follow to the effect that closing La Guardia would merely send myriad extra passengers to JFK and Newark airports, creating traffic snarl-ups on the roads, reducing passenger choice and perhaps exacerbating congestion in the air.
In our research we aim to be able to emulate this approach in a new kind of software that can provide significant benefits in improving the efficiency of traffic flow, hence improving road space utilisation, reducing journey times and potentially, improving fuel efficiency.
McDonnell has touted the potential benefits of the deal, emphasizing the economic costs of traffic congestion and the enormous gains that would flow from reducing it.
By footling round with centrifuges and liquid nitrogen they were reducing food to a set of mental hurdles, as though there weren't already enough traffic lights and zebra crossings in life.
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