Yesterday may have been a holiday on paper, but if you were navigating LA's major freeways, there was no sign people had the day off.

Steve Julian: Business analyst Mark Lacter, is this more evidence that Southern California traffic getting worse?

Mark Lacter: Steve, L.A. continues to be the most clogged-up city in the U.S. - according to something called the TomTom Traffic Index - with commuters caught up in delays, on average, 35 percent of the time.  Or, to put it another way, L.A. commuters are in congestion up to 40 minutes of each hour they're driving.  The worst time of the week to commute is Thursday night; that's when there's congestion more than 80 percent of the time.  Monday morning commutes are the lightest.

Julian: After L.A., where should you not live if congestion bugs you?

Lacter: The next worst cities in the U.S. are San Francisco, Honolulu, Seattle, and San Jose.  Now, the Census Bureau comes up with its own commuting surveys, and if you compare the most recent numbers with those back in 2000, you'll see that things aren't all that different.  Matter of fact, the percentage of commuters driving alone to work actually increased a little over the last decade to 72 percent, while the percentage of those carpooling has declined.

Julian: What about public transit?

Lacter: Well, the numbers are up slightly from 2000, but only to 7.3 percent of all commuters.  So, even assuming that the number inches up in the next couple of years when the Expo Line extends into Santa Monica, it's still a smallish piece of the pie.  And, since many of the other public transit projects being planned are decades away from being completed, those numbers might not change much.  One other thing, Steve: less than 1 percent of all L.A. commuters bike to work, which would throw cold water on the idea that biking in L.A. is becoming a popular way of getting to the office.

Julian: People just prefer commuting by car…

Lacter: It remains the most convenient way of getting around - despite the congestion.  New car sales are up 14 percent through the first nine months of the year in Southern California.  Add to that are generally affordable gas prices (they've been especially low in the last few weeks).  In other parts of the world, congestion is considered a good thing because it means that the economy is doing well.  Which explains that while L.A. is the most congested city in the U.S., it doesn't rank among the 10 around the world.  On that front, Moscow is tops, followed by Istanbul, and Rio de Janeiro.

Julian: What about driverless cars?

Lacter: Well, these vehicles hold the most promise for reducing accidents, lowering travel times, and improving fuel economy - and you don't have to give up your car.  Actually, a lot of the technology is already in place - that includes stuff like radar-based cruise control, and devices that keep you at a safe distance from the car in front of you.  The trick, of course, is taking these individual capabilities and integrating them into an entirely driverless car.  Several car companies say they could be ready to start selling by 2020, with Google saying that its car could be ready even sooner.

Julian: Is that realistic?

Lacter: Who knows?  But even if the dates can be met - and that's a big if, considering how complex these systems are - legislatures will have to determine, among other things, whether vehicles can be fully autonomous (meaning that you can curl up and take a nap while the computer is driving by itself).  Or, whether they will only be semi-autonomous, which would be like an airline crew using automatic pilot, but always prepared to take over the controls.

Julian: Is that a liability issue?

Lacter: Yes - if something does go wrong, who will get the blame?  The owner of the vehicle?  The carmaker?  The suppliers of the car companies?  These questions might take years to get resolved in the courts - and even then, it could be years before the percentage of these vehicles on the road is large enough to truly have an impact.  But, considering that most commuters aren't willing to give up their cars, this would seem to be the most exciting, most desirable idea.  One day.

Mark Lacter writes for Los Angeles Magazine and pens the business blog at LA Observed.com.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Win10 BrightnessSlider adds a Monitor Brightness icon to on Taskbar Tray that lets you adjust the brightness of your monitor(s) with a simple slider. If you use multiple monito....

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First Reported: Wednesday, 13 Nov 2024 23:28:00
Status: GOING
Region: 1

Highways and freeways can both be designed with multiple lanes, entrance and exit ramps and limited traffic control to reduce congestion and improve driver safety. However, some small highway vs. freeway distinctions place them in separate categories.

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Barring very few functionally useful ones, many elevated concrete structures with suboptimal utility have ripped the city apart, defiled and marred it.

Yesterday may have been a holiday on paper, but if you were navigating LA's major freeways, there was no sign people had the day off.

Steve Julian: Business analyst Mark Lacter, is this more evidence that Southern California traffic getting worse?

Mark Lacter: Steve, L.A. continues to be the most clogged-up city in the U.S. - according to something called the TomTom Traffic Index - with commuters caught up in delays, on average, 35 percent of the time.  Or, to put it another way, L.A. commuters are in congestion up to 40 minutes of each hour they're driving.  The worst time of the week to commute is Thursday night; that's when there's congestion more than 80 percent of the time.  Monday morning commutes are the lightest.

Julian: After L.A., where should you not live if congestion bugs you?

Lacter: The next worst cities in the U.S. are San Francisco, Honolulu, Seattle, and San Jose.  Now, the Census Bureau comes up with its own commuting surveys, and if you compare the most recent numbers with those back in 2000, you'll see that things aren't all that different.  Matter of fact, the percentage of commuters driving alone to work actually increased a little over the last decade to 72 percent, while the percentage of those carpooling has declined.

Julian: What about public transit?

Lacter: Well, the numbers are up slightly from 2000, but only to 7.3 percent of all commuters.  So, even assuming that the number inches up in the next couple of years when the Expo Line extends into Santa Monica, it's still a smallish piece of the pie.  And, since many of the other public transit projects being planned are decades away from being completed, those numbers might not change much.  One other thing, Steve: less than 1 percent of all L.A. commuters bike to work, which would throw cold water on the idea that biking in L.A. is becoming a popular way of getting to the office.

Julian: People just prefer commuting by car…

Lacter: It remains the most convenient way of getting around - despite the congestion.  New car sales are up 14 percent through the first nine months of the year in Southern California.  Add to that are generally affordable gas prices (they've been especially low in the last few weeks).  In other parts of the world, congestion is considered a good thing because it means that the economy is doing well.  Which explains that while L.A. is the most congested city in the U.S., it doesn't rank among the 10 around the world.  On that front, Moscow is tops, followed by Istanbul, and Rio de Janeiro.

Julian: What about driverless cars?

Lacter: Well, these vehicles hold the most promise for reducing accidents, lowering travel times, and improving fuel economy - and you don't have to give up your car.  Actually, a lot of the technology is already in place - that includes stuff like radar-based cruise control, and devices that keep you at a safe distance from the car in front of you.  The trick, of course, is taking these individual capabilities and integrating them into an entirely driverless car.  Several car companies say they could be ready to start selling by 2020, with Google saying that its car could be ready even sooner.

Julian: Is that realistic?

Lacter: Who knows?  But even if the dates can be met - and that's a big if, considering how complex these systems are - legislatures will have to determine, among other things, whether vehicles can be fully autonomous (meaning that you can curl up and take a nap while the computer is driving by itself).  Or, whether they will only be semi-autonomous, which would be like an airline crew using automatic pilot, but always prepared to take over the controls.

Julian: Is that a liability issue?

Lacter: Yes - if something does go wrong, who will get the blame?  The owner of the vehicle?  The carmaker?  The suppliers of the car companies?  These questions might take years to get resolved in the courts - and even then, it could be years before the percentage of these vehicles on the road is large enough to truly have an impact.  But, considering that most commuters aren't willing to give up their cars, this would seem to be the most exciting, most desirable idea.  One day.

Mark Lacter writes for Los Angeles Magazine and pens the business blog at LA Observed.com.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Dashcam footage shows an out-of-control truck hurtling through a red light at the base of Adelaide's South Eastern Freeway, moments after the vehicle lost its brakes and was forced onto the wrong side of the road.

Dashcam footage shows the truck's brakes smoking, before it hurtles through a red light at a notorious intersection.

A Victorian driver allegedly tests positive to methamphetamine after his truck ran out of fuel on the South Eastern Freeway, causing traffic delays. It coincides with a report showing 60 per cent of trucks are failing safety inspections.

Todd Robinson speaks out about his partner, Constable Glen Humphris — one of the four police officers killed in a fatal crash — saying he was "so proud" to have joined Victoria Police.

A Victoria Police officer, who was killed along with three of his colleagues when they were struck by a truck, is remembered as a "bright light" by his devastated family, who have been left "with a pain that has taken our breath away".

The partner of Senior Constable Kevin King, who was killed in last week's Eastern Freeway crash in Melbourne, says her heart is "in pieces" after the loss of her "only love for 35 years".

Leading Senior Constable Lynette Taylor is farewelled as a dedicated "hero" who will always be remembered for making a "huge difference to the community", as Victoria Police officers observe a minute of silence for their colleague.

Victorians will never forget the sacrifice made by the four police officers killed in the Eastern Freeway crash, Police Minister Lisa Neville says, as Constable Glen Humphris and Senior Constable Kevin King are laid to rest.

Mountain lions in southern California are endangered by rat poison and development. Time to protect them.

Reader Ron King of Camarillo doesn't like how The Times refers to local freeways.

Ferrari's 488 Pista, which replaces the 458 Speciale, is driven by the most powerful V8 engine Ferrari has ever put in a road car.

Long Beach police alerted the CHP to the man, who was walking on the freeway about 1:30 a.m. and wielding a knife.

A bear in Castaic was fatally struck by a car while walking through traffic near the northbound 5 Freeway the early Friday morning hours.

Jeng-Min Chiou, Yu-Ting Chen, Tailen Hsing.

Source: The Annals of Applied Statistics, Volume 13, Number 3, 1430--1463.

Abstract:
Motivated by the study of road segmentation partitioned by shifts in traffic conditions along a freeway, we introduce a two-stage procedure, Dynamic Segmentation and Backward Elimination (DSBE), for identifying multiple changes in the mean functions for a sequence of functional data. The Dynamic Segmentation procedure searches for all possible changepoints using the derived global optimality criterion coupled with the local strategy of at-most-one-changepoint by dividing the entire sequence into individual subsequences that are recursively adjusted until convergence. Then, the Backward Elimination procedure verifies these changepoints by iteratively testing the unlikely changes to ensure their significance until no more changepoints can be removed. By combining the local strategy with the global optimal changepoint criterion, the DSBE algorithm is conceptually simple and easy to implement and performs better than the binary segmentation-based approach at detecting small multiple changes. The consistency property of the changepoint estimators and the convergence of the algorithm are proved. We apply DSBE to detect changes in traffic streams through real freeway traffic data. The practical performance of DSBE is also investigated through intensive simulation studies for various scenarios.

The Dahme-Spreewald administrative district’s local building inspection authority confirmed the completion of the passenger terminal (Terminal 1) at BER following completion of the construction work.

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Desperate motorists beeped at the truck to alert the driver who was forcing the car along the Western Ring Road Freeway in Derrimut, Melbourne on Friday morning.

Victorian police escorted Const Glen Humphris' body on Saturday to the border of NSW at Albury-Wodonga, where their colleagues continued to the officer's final resting place in Newcastle.

Frank Capraro, 23, and Desmond McDay, 25, were taken into custody Friday after witnesses called in about boxes that had been dumped on a highway and a K9 detected the odor of marijuana.