Live For Speed 100 Save Game
Evagret Homestead
The Automated Speed Enforcement (ASE) program cameras on Roosevelt Boulevard have saved lives by reducing excessive speeds, which cause fatal and serious injury crashes. However, speed cameras are set to expire at the end of 2023. Speed cameras should be renewed and expanded to additional corridors in the city.
Recently, researchers at the University of Pennsylvania analyzed the safety impacts of the automated speed enforcement (ASE) program on Roosevelt Boulevard. The researchers found that speed cameras on Roosevelt Boulevard have saved a just under 1 life per month.
Since the start of enforcement in March 2020 through the end of 2021, PennDOT has also found that speeding in Automated Work Zone Speed Enforcement (AWZSE) enforced work zones has reduced to 20% of all traffic. Excessive speeding, of at least 11 mph over the speed limit, has reduced to 3% of all traffic.
Roosevelt Boulevard has long been among the most dangerous roads in the state. The City is leading a transformation of the corridor through the Route for Change Program. The City received a $78 million Mega grant from the U.S. Department of Transportation for traffic safety treatments on the Boulevard.
Roosevelt Boulevard is not the only corridor in Philadelphia where excessive speeds contribute to deaths and serious injuries. Speeding-related crashes have risen on corridors like Broad Street, Frankford Avenue, and Girard Avenue.
Since speed cameras were installed on Roosevelt Boulevard, speeding-related crashes have gone down, and traffic safety is trending in the right direction. The success on Roosevelt Boulevard shows the impact of speed cameras. Now, speed cameras need to be expanded to more corridors.
\nThis means that just setting urban speed limits at 30 miles per hour or less, and allowing local authorities to reduce speed limits further around schools and other areas with high pedestrian traffic, would save many lives. It is encouraging that 47 countries around the world are already implementing these commonsense practices. But we must do far more to expand the reach of such measures, and to ensure that more governments adopt them.
\nNot surprisingly, countries that have embraced a comprehensive approach to road safety, such as the Netherlands, Switzerland, and the United Kingdom, have had the most success in reducing their rates of death and injury from automobile accidents. These countries have made it a high priority to reduce rates of speeding, and they have taken steps to improve the safety of their roads, vehicles, drivers, and all others who use roads, including pedestrians and motorcyclists.
\nFor example, proactive countries have built their roads to include features that calm traffic, such as roundabouts. They have also established speed limits tailored to local road conditions, while stepping up enforcement to deter traffic violations. And they have begun to require that all new cars include life-saving technologies such as autonomous emergency braking.
\nTo build on these achievements, Bloomberg Philanthropies, the World Health Organization, and other partners are working with municipal leaders to help them gather the data needed to identify problem areas more effectively. They can then determine where to target their limited resources to make the biggest improvements. We are also providing support for local authorities to stage public-awareness campaigns that will help build grassroots support for new road-safety legislation and stronger penalties.
\nImproving road safety is one of the biggest opportunities we have to save lives around the world. And the good news is that, starting with the solutions outlined above, we already know how to do it.
\nThe fourth annual United Nations Global Road Safety Week, May 8-14, provides a chance to draw more attention to these solutions. Over the course of the week, community events are being held in cities around the world, to help raise awareness of the problem and advance more solutions. These events will take many forms: street traffic will be slowed down, campaigns will be launched in many schools, and roundtable discussions will be held to explore how we can ensure that smart policies continue to spread.
This means that just setting urban speed limits at 30 miles per hour or less, and allowing local authorities to reduce speed limits further around schools and other areas with high pedestrian traffic, would save many lives. It is encouraging that 47 countries around the world are already implementing these commonsense practices. But we must do far more to expand the reach of such measures, and to ensure that more governments adopt them.
Not surprisingly, countries that have embraced a comprehensive approach to road safety, such as the Netherlands, Switzerland, and the United Kingdom, have had the most success in reducing their rates of death and injury from automobile accidents. These countries have made it a high priority to reduce rates of speeding, and they have taken steps to improve the safety of their roads, vehicles, drivers, and all others who use roads, including pedestrians and motorcyclists.
For example, proactive countries have built their roads to include features that calm traffic, such as roundabouts. They have also established speed limits tailored to local road conditions, while stepping up enforcement to deter traffic violations. And they have begun to require that all new cars include life-saving technologies such as autonomous emergency braking.
To build on these achievements, Bloomberg Philanthropies, the World Health Organization, and other partners are working with municipal leaders to help them gather the data needed to identify problem areas more effectively. They can then determine where to target their limited resources to make the biggest improvements. We are also providing support for local authorities to stage public-awareness campaigns that will help build grassroots support for new road-safety legislation and stronger penalties.
The fourth annual United Nations Global Road Safety Week, May 8-14, provides a chance to draw more attention to these solutions. Over the course of the week, community events are being held in cities around the world, to help raise awareness of the problem and advance more solutions. These events will take many forms: street traffic will be slowed down, campaigns will be launched in many schools, and roundtable discussions will be held to explore how we can ensure that smart policies continue to spread.
In the process of trying to save a partially un-stuck print (thin-wall, no brim, my bad). A major culprit seems to be the motions of the bed during non-extruding transits. The ultra-fast motion rocks the whole print causing it to become gradually unstuck.
I tried live-tuning the speed down to 40% and it definitely helps. However ... it looks to me as though only some aspects of the printer are slowed down. Specifically, those high-speed, non-extruding transits still seem to go just as fast. Is that correct? Is there any way to live-tune that aspect of the printer?
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
[...] I tried live-tuning the speed down to 40% and it definitely helps. However ... it looks to me as though only some aspects of the printer are slowed down. Specifically, those high-speed, non-extruding transits still seem to go just as fast. Is that correct? Is there any way to live-tune that aspect of the printer?
I believe changing speed on the front panel changes all speeds. However, depending on how you've configured your slicer, you may never be hitting the selected maximum speed (e.g. 180 mm/s for non-print moves) under normal conditions, due to acceleration limits and the size of your model. Live-adjusting the speed to 40% via the front panel may still be allowing the non-travel moves to hit the same speeds as when set to 100%.
I'm guessing that most folks who dial their live speed down on the Prusa font panel do it to address a print problem (or save a print). I can imagine the firmware code for live speed adjustments is complex, but lowering the speed for non-print moves would be a useful for saving a print.
From staring long and hard at my ever-more-unstuck part as it rocks and teeters back and forth, it's clear that accelerations of the print bed during non-print moves are far more of a problem than regular print operations. And now I see that Slic3r has specific acceleration settings ... how clairvoyant!
I set non-print moves at a high speed because my primary material - nGen - is rather stringing-prone. "Get there fast, before it dribbles all over itself" has been my philosophy, and the result is a print that is subject to harsh accelerations and lateral forces. However, Brims are problematic for me ... my first layer forms the critical leading edge to a wind channel (on a flute), and removing the brim and restoring the correct angle is challenging ...
[...]I'm on S3D, where most print speeds are percentages of some other print speed ... a daft system making it dauntingly difficult to figure out exactly what speed you will be getting.Ah, Simplify 3D. I spent hours working up Excel spreadsheets to allow me to enter print speeds and calculate percentages. I got to know it pretty well.
I'm guessing that most folks who dial their live speed down on the Prusa font panel do it to address a print problem (or save a print). I can imagine the firmware code for live speed adjustments is complex, but lowering the speed for non-print moves would be a useful for saving a print.I'll use it pretty much whenever something goes wrong on the 1st layer print with a new material. I've found that slowing down makes a big difference. Of course, "slower" is relative to maximum, so how far I have to dial it back depends on the feature I'm having issues with.
From staring long and hard at my ever-more-unstuck part as it rocks and teeters back and forth, it's clear that accelerations of the print bed during non-print moves are far more of a problem than regular print operations. And now I see that Slic3r has specific acceleration settings ... how clairvoyant!The inability to set granular speeds for different features (notably skirts) is what drew me, reluctantly, away from Simplify 3D. I was enamored with Cura's fine granularity of speed control and ability to enter speeds directly rather than as percentages of maximum.
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