Police are concerned about the number of pedestrians being knocked over and killed on Warwickshire's roads.
Officers say mobile phones and MP3 players are becoming a major distraction.
Last year 33 people were killed on the county's roads - although there are no figures on how many of them were using such devices.
Warwickshire Police Head of Incident Resolution, Superintendent Adrian McGee said:
"This may appear to be a trivial issue to some but the risks are clear. It is all too easy for an inattentive pedestrian using a mobile phone to take a quick glance before stepping off the kerb to cross when they should take the time to look both ways properly. This makes it easy to miss an approaching vehicle.
Similarly a pedestrian listening to music impairs their ability to hear approaching traffic. Pedestrians need to be aware of the risks they are unknowingly taking and ask themselves how important is that text, everyone needs to take more responsibility for their personal safety"
Warwickshire County Councillor Richard Hobbs, portfolio holder for community protection added:
"The immense popularity of mobile phones and other portable devices presents a major risk to pedestrian safety. It's not uncommon to see pedestrians so completely absorbed in their phones that they are entirely oblivious to where they are and what's going on around them.
People are increasingly using mobile phones on the move to perform complex tasks that demand a huge amount of attention, such as texting, accessing emails and the internet, updating social media or making use of apps. If you are focused on texting or selecting a play list you can't be fully aware of traffic. It's a recipe for disaster"
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