Why not try more memorable speed limits – like 13 mph?

Could more unusual speed limits help improve safety on the roads? Here is one speed limit I saw recently along a road coming out of a shopping plaza:

Most speed limits are in increments of 5. I assume this is, in part, due to standardization of roadways throughout the United States. But, why not throw in some more unusual numbers to catch the attention of drivers? Would I be able to stick to the occasional 13 or 31 or 67 more easily than the standard 15, 30, or 65? If every speed limit was a number off of the 5/10s pattern, they might make the problem worse. The key could be to have some numbers off from typical numbers.

The switch to more digital speedometers in cars could help with this. A good number of speedometers are also in increments of 5 and 10 so matching 13 mph could be hard. If more drivers have digital displays where a 5/10 increment does not exist, then escaping the rigidity of 5/10s could be easier.

How 46 ISO standards for world cities could be used

The International Organization for Standardization has approved a list of 46 key indicators by which to compare cities around the world:

But now, the first-ever set of ISO standards for world cities has been created. And the implications are dramatic. City policymakers will have objective standards to compare their services and performance with other cities around the world. And just as significant, the people of cities — civic, business organizations, ordinary citizens — will be able to access the same new global standards. This means they can ask city leaders tough questions, stoking debate about their own city’s performance on the basis of verified measures ranging from education to public safety to water and sanitation…

But many cities, up to now, haven’t recorded data on all those indicators. Or if they did, they were inconsistent in their precise definitions, making it difficult to make apples-to-apples comparisons of cities across continents and diverse societies. Many organizations, in independent media and special interest groups, issue rankings of cities. But in 2008, when the Global Cities Indicators Facility at the University of Toronto compared rankings that had been applied to seven prominent world cities, it turned out that only six of the 1,200 indicators being applied were exactly the same.

Now, cities everywhere will have an internationally agreed upon set of standards indicating data that should be collected, and the definitions and criteria to use in collecting it. They won’t be legally required to do so, but they’re likely to be under pressure from citizen, business, academic and other groups insisting they use the ISO standards so that their performance can be benchmarked clearly against peer cities, both in-country and — in today’s increasingly globalized economy — across the globe…

A technical committee was formed. With McCarney’s institute acting as a de facto secretariat, meetings were held in urban centers from Japan to France and Britain to Canada. Comments were received from cities worldwide — “fantastic for us, really strengthening the set of indicators we started with back in 2008,” notes McCarney. The analysis winnowed down and rejuggled the list to 100 candidate indicators. Finally, 46 (see them all here) were selected as well-tested core measures that cities must report to prove they’re in conformance with the new ISO 37210 standard.

It will be interesting to see how the data is used. Here are some options:

1. The article suggests having clear points of comparison will push cities to compete. Yet, not all the cities are directly comparable. The article addresses this by suggesting there could be different tiers of comparisons – the top global cities and developing world cities shouldn’t be compared head-to-head.

2. Is this going to be another set of information that is primarily for boosters? Imagine a city in Western Europe could say that it is one of the best of the world in low levels of particulates in the air and then trumpets this in a marketing campaign. Similarly, the media might eat up this information.

3. National or international bodies could use this information to enforce certain guidelines. If there is reliable information on air pollution, outside bodies could then claim other objective standards need to be met.

4. Maybe this is primarily for academics. Consistent data across cities and countries can often be difficult to come by so having set standards and data collection could help. This could be particularly useful for tracking change in developing world cities.

Settling on how to measure data is a start but it is part of a longer process that then includes figuring out how to interpret and use such data.

How time zone boundaries can affect cultural practices

Time zones help keep social life across the world consistent but they can have different effects on social life within each time zone:

Now, Google engineer Stefano Maggiolo has visualized what this difference looks like around the world—how solar time lags behind or marches in front of the time on the clock. It’s a rare look at the rhythm of the day—measured and made uniform by technology—affects communities around the world…

Of course, the reasons for standardization are often as sociological as they are technological—and their effects wind up redounding beyond their intent. As Joshua Keating writes at Slate, Spain standardized on central European time during Franco’s reign. This, in turn, led to later schedules in Spain, and to the nation’s famously nocturnal suppers.

“At the time I’m writing, near the winter solstice, Madrid’s sunset is around 17:55, more than an hour later than the sunset in, for example, Naples, which is at a similar latitude,” writes Maggiolo.

It was Spain’s extreme offset that led to Maggiolo’s writing the story.

China, too, uses a single time zone across its territory, which works for the country’s more urban east but hurts the country’s rural west. India does the same—to, as it happens, the opposite effect. In India’s easternmost state, the summer sun can rise as early as 4:30 a.m.

Some historians argue that the invention of the clock and the subsequent development of clock time had a profound effect on civilization. But, tweaking time zones, whether countries want to have a single zone or want to be half an hour off or areas don’t want to switch for Daylight Savings Time (we experienced this in northwestern Indiana so half the year we were on eastern time, half on central time), can lead to some different outcomes and social patterns. In these instances, time can serve nationalistic (in the case of having a single time zone for one country) or economic (the northwest corner of Indiana is on central time and not eastern time like the rest of the state to maintain its ties to Chicago) purposes.

This makes me think that it would be pretty interesting to study people and communities right at the edges of these zones. If India and China have different single time zones, what happens at their border where there is a substantial 2.5 hour difference? Even consistently traversing a one hour time different in the U.S. within one metropolitan area could be interesting.