Flooding during the April to December rainy season occasionally makes city streets unusable for most vehicles, and washes out some roads in rural areas. In addition, rural areas are often poorly maintained and lack illumination at night. Such roads are generally less traveled and the availability of emergency roadside assistance is very limited. Road travel is more dangerous during the rainy season and from the time of Carnival through to Good Friday. Carnival starts the Saturday before Ash Wednesday and goes on for four days.