Waymo will upgrade its software for automated driving to manage power outages on a large scale, similar to those that occurred in San Francisco. This update is designed to minimize delays caused by multiple vehicles requiring human supervision at the same moment.
Last weekend, an electricity outage in San Francisco exposed the response of self-driving cab systems to citywide pressure.
After traffic lights went out, automated vehicles operated by Waymo remained immobilised in intersections. This contributed to the congestion of roads at a moment when authorities were already encouraging drivers to stay off them.
This incident occurred after a large-scale power outage that affected many parts of the city. It prompted a review of autonomous vehicles’ ability to deal with such problems.
Power outage disruption
This was caused by a fire that broke out at a PG&E substation, which had led to power cuts in San Francisco on the weekend.
According to the information provided by city and utility officials, at its height, this outage affected approximately 130,000 customers.
Drivers were forced to use standard visual clues in order to cross intersections during the blackout.
On social media, footage showed that several Waymo cars were stopped on the side of the road with their hazard light flashing. This led to long traffic queues behind the vehicles.
The city officials warned motorists that the situation was getting worse and to avoid the roads.
Waymo has suspended service as the disruption to normal traffic continues.
Automated cars can’t cope with blackout
Waymo is owned by Alphabet Inc. and its automated driving system is designed to use dark traffic signals as four-way stop signs.
In normal conditions, these intersections can be navigated by vehicles without any intervention.
The company claims that the vehicles were able to handle around 7,000 traffic signs which had not been working during the power outage of Dec. 20, 2016.
The scale of blackouts created an increase in the number of situations when vehicles wanted to confirm their position before continuing.
The confirmation checks will help you make safe decisions in complex situations.
As a result of the sudden surge in requests, response times were slowed and some vehicles remained stationary as they waited for clearance.
Traffic jams in videos captured online are a result of this delay.
Waymo suspended operations as conditions worsened.
After city officials requested that drivers stay off of the road, the company took the decision. This reflects a broader concern for safety during the outage.
This pause was implemented to reduce traffic and risks in already congested intersections.
This incident brought to light the challenges faced by autonomous vehicles operators when infrastructure fails, even if they are rare.
Updates to software and other emergency services
Waymo is working on integrating more information about regional power outages into its software.
The goal is to make it easier for vehicles to navigate through intersections that are affected by widespread power outages.
In addition, the company works with San Francisco officials including Mayor Daniel Lurie to improve emergency response protocol.
Waymo also plans to upgrade training for emergency responders, so that they are better equipped to handle situations with autonomous vehicles in emergencies.
These measures are intended to reduce the likelihood of future delays and improve coordination if similar incidents occur.
As updates are made, this post Waymo strengthens fleet software to prevent traffic jams after power outage may change.
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