Ojek "motorcycle taxi" began appearing in Jakarta after becak was banned in 1994. Ojek service began as a people' s initiative to provide an alternative transportation for people who used becak from main roads into housing complexes. There is  no  government license or control for  ojek.  By  the way,  all  motorcycle passengers should wear helmet so ojek drivers should have a spare for their passengers to wear. Ojek tends to congregate at t-junctions on main roads and near smaller roads that are not serviced by bus routes. Ladies should have a careful position in taking ojek. Also, if the woman wear a dress, they  have to sit sidewise on the back of the vehicle. You have to bargain before you get on and ask a local people about the usual  price.   What is mainly discussed in the text?