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Effects of Daylight Saving Time on Traffic Accident Risk

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Re: Effects of Daylight Saving Time on Traffic Accident Risk

#61

Genuine question to the experts: What are the chances that this effect is caused by how we attribute the accidents to time intervals? I haven't read the whole paper, but when they say accident rate is increased by 6%, is that counted by 24-hour intervals? Or by calendar days?

It is also a question what happens in Autumn if it balances out then there is no news actually.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#62

Georgia is putting DST on the ballot this November. Voters will have a choice to stay with DST, going to standard time year around, or asking Congress for permission to stay on DST year around. My guess is none of the options will receive a majority vote but year around DST will get the plurality. Since that requires Congressional approval and the ballot referendum is non-binding, nothing will change as a result. Hav…

Illinois already passed a bill to do the same just this year, but I don’t know what the deal is with Congress. I think only Arizona currently has permission.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#63

Earlier quoted context omitted.

I’m a big fan of everyone in the world just using UTC and calling it a day. A meeting at 0700 is exactly what you think it means. But I also never expect it to happen.

It's not as good idea as you may thing: * https://qntm.org/abolish Okay, it's "1700Z" and you're at work: are the folks at the Singapore office in yet? If New York's business hours are 14-22Z, what are Berlin's? Bangalore's? Tokyo's? Seattle's? At least with timezones you can do some simple +/- math and see if you end up in the typical '9-5L' range: * https://everytimezone.com But with only-UTC (as much I set my serv…

Keeping track of the buisness hours of a specific office is way easier than keeping track of their timezone, business hours and then convert your local time to their time to see if they're actually open.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#64
post #63

Earlier quoted context omitted.

It's not as good idea as you may thing: * https://qntm.org/abolish Okay, it's "1700Z" and you're at work: are the folks at the Singapore office in yet? If New York's business hours are 14-22Z, what are Berlin's? Bangalore's? Tokyo's? Seattle's? At least with timezones you can do some simple +/- math and see if you end up in the typical '9-5L' range: * https://everytimezone.com But with only-UTC (as much I set my serv…

Keeping track of the buisness hours of a specific office is way easier than keeping track of their timezone, business hours and then convert your local time to their time to see if they're actually open.

Maybe so, but you can pretty reasonably assume that most people are awake and active at 1:00 PM in their time zone.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#65

I'm a fan of changing the clocks twice a year for the reasons nicely laid out in this article: http://www.leancrew.com/all-this/2013/03/why-i-like-dst/ >If we stayed on Standard Time throughout the year, sunrise here in the Chicago area would be between 4:15 and 4:30 am from the middle of May through the middle of July. And if you check the times for civil twilight, which is when it’s bright enough to see without art…

It would be better for children to start school later in the day anyway.

Don't DST in practice make school start an hour later parts of the year? Where I live it don't get dark for 2-3 months during the summer and it was never easy to get up in the mornings. The same at the middle of winter there is no sunrise so not possible for schools to start after dawn.

I think I did read some place that it was more connected to that our sleep pattern isn't accurate with 24h, so if we get up later we would go to be later and be back to square one.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#66
post #18
post #17

Earlier quoted context omitted.

Are you absolutely sure people aren't having a lend of you? Or that there's a translation problem -- that they're insisting that it 'creates' an hour of sunlight during the part of the day that's most useful for them? (Implicitly acknowledging they lose that at the other end.) If it's not these, then I weep. People's view of how the world (and moon) fits within the solar system must be severely broken.

The most intelligent person I know refused to believe me when I said that there would be fewer daylight hours in the winter when he visited me in the north. Of course, he was smart enough to research it on his own and come to the correct conclusion, but it was an entirely foreign concept to him. That being said, I also know plenty of people who understand the concept perfectly, but also insist they will "gain" an hou…

I've actually adopted the Japanese Buddhist clock. There are 12 hours: 6 during daylight hours and 6 during night time hours. The actual time of each hour depends on the season and the latitude. Wikipedia: https://en.wikipedia.org/wiki/Japanese_clock#The_traditional...

I really like it. There is actually an Android app on Fdroid: https://f-droid.org/en/packages/com.aragaer.jtt/ although it unfortunately doesn't have alarms -- I really need to get off my butt and contribute that feature. I set my alarm so that I get up in time to go for a walk at sunrise.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#67
post #63

Earlier quoted context omitted.

Keeping track of the buisness hours of a specific office is way easier than keeping track of their timezone, business hours and then convert your local time to their time to see if they're actually open.

Maybe so, but you can pretty reasonably assume that most people are awake and active at 1:00 PM in their time zone.

You can. But especially if you don't have frequent contact with other timezones it is very hard to keep track about how far they are ahead or behind your local time. This gets even harder with DST. While this might be easy if you're just in different US timezones, but it gets increasingly harder with larger distances.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#68
post #36

I, for one, would like to wake up when the sun is up, and go to sleep when the sun is down. Isn't this this the same website where everyone is familiar with Why We Sleep? Standard Time forever

In the age of smartphones, there is no reason two dozen 2D time zones couldn’t exist in the US, with small shifts in time every day at 3 am to keep seven am as the dawn. Humans were meant to rise with the sun.

> In the age of smartphones, there is no reason two dozen 2D time zones couldn’t exist in the US

Google time or Apple time?

I also think it would make it harder than it already is for people to coordinate multi-time zone activities such as VTC.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#69
DST is a very sensitive topic, so better use a throwaway ;) Here are examples what would happen if DST were abolished:

If DST ('+1') is adopted permanently, the main effects will be during winter in that sunrise is now an hour later (bad) and sunset as well (which is ok). An example for Berlin, in December: if sunrise used to be at 8:00 (8 a.m.) normal time it is now an hour later at 9:00 (a.m.) (spend some time further north and you will know how much this would suck). Sunset that used to be around 16:15 (4:15 p.m.) is now at 17:15 o'clock (5:15 p.m.) (good/ok).

If normal time ('+0') is adopted, the interesting effects are during summer: sunrise is now an hour earlier than it used to be with DST and the same of course with sunset.

Example for Berlin, in July again: sunrise that used to be at 5:00 o'clock (a.m.) in DST is now at 4:00 (a.m.) (bad), sunset that used to be at 21:30 o'clock (9:30 p.m.) is now at 20:30 o'clock (8:30 p.m.) (bad if you like spending long summer evenings outside).

From my experience most people do not actually hate either, they just do not like the sudden transition. Shifting the daily routing to later hours, especially the sleeping time, is not that bad in autumn. Changing it forward in the spring is harder but not really a problem if you gradually change your sleeping and meal times in advance. I'm currently at it by going to bed a bit earlier, getting up earlier and (trying to) change eating times. Lunch is a bit problematic but breakfast and dinner do not affect others so much, so it's easier to shift them.

Re: Effects of Daylight Saving Time on Traffic Accident Risk

#70

Accident risk has been shown to decrease by the same amount when the time switches in the fall. It's a wash.

If there's anything to learn from reports like this, it would be that people should be allowed to live on more flexible schedules. Not just around DST changes, but in general. The obsession modern society has with clocks, schedules and calendars bothers me anyway, it assumes every person is equally capable of adapting to what is considered a 'normal' (ie: majority) schedule, which is provably false. But no report will ever investigate e.g. how many traffic accidents would be prevented by not forcing everyone to do the school run at the exact same time and be in the office before 9:00.

Restricting the topic to just DST changes: considering modern society sadly is obsessed with clocks, DST is IMO the best way to maximize how much of the waking hours of people are during sunlight. DST itself isn't the problem, the problem is that apparently people don't get enough time to adjust. So why not introduce a national holiday twice a year, call it 'DST day', so everyone gets an extra day to adjust. I guess that would go a long way to alleviate the negative effects. Obviously then all of a sudden it's not about fatal traffic accidents anymore, but about economic effects and money... :-(

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