"It's hopeless," Medhat al-Saba wrote. "Traffic is jammed from the beginning of the October Bridge to Ramses Square. I recommend you take an alternate route."
Al-Saba posted this message on his Bey2ollak account, a smart phone application that allows users to exchange information about traffic conditions in Cairo.
Bey2ollak messages like al-Saba's help many Egyptians save time by advising them to avoid congested streets and by recommending alternate routes in the crowded capital.
The application was launched in 2010 by a group of young Egyptians who wanted to provide alternatives for drivers stuck in Cairo's traffic jams during their commutes to and from work.
Cairo is one of the world's busiest capitals with millions of vehicles, according to the Central Agency for Public Mobilisation and Statistics. The city's population is estimated to exceed 20 million people, and as many as three to five million people visit the city from neighbouring provinces daily.
The free service depends on user participation and sharing information on traffic conditions they encounter on a daily basis.
At the beginning of 2012, Bey2ollak became available on all smart phones in both Arabic and English. It can be linked to personal accounts on Facebook and Twitter so traffic information can be shared with those who use social networking sites.
Bey2ollak's main page lists the most heavily-travelled streets and hubs in Cairo.
Traffic flow is colour-coded using five colours, with green indicating that traffic flow is "halawa" or wide open, light green indicating flow is "lazeez" or good, yellow "slow-moving", orange "congested" and red indicating "hopeless" traffic conditions.
The application also displays symbols that warn of danger ahead and unsafe road conditions. An X within a circle denotes an accident and another indicates that a road is closed for construction or repair.
Comments on the current traffic situation or explanations can be added at the discretion of the application's users, who often note congestion or road closures due to accidents, construction or repair.
Gamal Sadek, one of the application's creators, said the secret of its success can be attributed to its simplicity and ease of use.
"The application's concept stemmed from our desire to help thousands of Egyptians who spend much of their time on the road, so we thought about ways to use technology to help alleviate [the problem] for citizens," he told Al-Shorfa.
Initially, the application was primarily used by young people, but now it is used by an estimated 250,000 users of all ages.
One of its main features is its use of the Egyptian dialect. When it is booted up, it says to the user, "Bey2ollak be patient". When the user is about to post a comment the programme says "Broadcast". When he is about to make an inappropriate comment it says, "That's disgraceful."
The term "Bey2ollak" itself is slang and associated with gossip and information from anonymous sources, reminding some of Egyptian comedy movies. Its users mention street names as they are known to residents and not their official names on street signs.
"I live in a new city outside Cairo and have to commute to downtown Cairo every day for work," said Shirin Mahmoud, 52, a university professor. "It takes me at least three hours to drive to work and back. The Bey2ollak app saved me time on many occasions when I either took an alternate route or changed the time I left for or returned from work."
Shirin said she learned about the programme from her son, a university student.
"My son does not move his car before checking the application," she said. "It is easy to use and amusing, and I learned to use it even though I'm not technologically inclined."
Resident Mervat Murad said the application has made life easier for her. She reschedules appointment to avoid traffic congestion based on information obtained from Bey2ollak.
"One day last week I worked from home because the ring road, my only route to work, was blocked by a terrible accident for six hours, so I informed my manager at work that I opted to work from home," she said.
Earlier this year, the Bey2ollak application won first place in the NexGen IT Entrepreneur competition, organised by the Egyptian Ministry of Communications in collaboration with the Government of Denmark and the U.S. Agency for International Development (USAID), in recognition of its founders' creativity and innovation in developing a business model that meets a market need.