Of more angst to drivers are the customer ratings systems imposed by the app companies. While most drivers do not have a problem with the notion of being rated, they are concerned that they will receive poor marks for circumstances beyond their control. Customers can give even the most earnest drivers bad ratings for any reason such as bumpy rides over pothole strewn roads, traffic congestion and passengers underestimating how much time they need to reach their destinations. Miscommunication between passengers and drivers can occur because passengers cannot speak the local language, are drunk, or fall asleep and cannot direct the driver to their remote destinations. Perhaps some passengers just do not like the ethnic group to which some drivers appear to belong. Circumstances such as these are clearly the fault of passengers who may rate drivers poorly nonetheless.Drivers with low ratings can be expelled from on-demand taxi services. This unfairness is compounded to the extent that drivers make large investments in their cars, insurance and fuel. Making drivers, who basically invested in a franchise, vulnerable to expulsion from a system because of unfair ratings seems to me to be a potential source of dissention or even litigation. Another concern associated with the taxi app business model is that drivers only have 15 seconds to respond to notices of pick up opportunities. Drivers that fail to respond in such tight windows lose the business. Repeat failures to make timely responses can result in temporary suspensions. This pressure, and related distractions associated with interacting with handsets, is applied simultaneously with all of the challenges of navigating traffic in a variety of weather conditions. Foremost, this is a driving hazard that imperils everyone in the vicinity. It also ties in with the ratings systems because drivers are only rated on the rides they complete. Drivers who claim rides but abandon the customer if it looks like the pickup will be delayed have no ratings risk. Paradoxically, no ratings result in the worst customer service as passengers end up stranded.