Route 149 was introduced in 1961 to replace trolleybus route 649 between Waltham Cross and Liverpool Street station. In 1968 it was extended on weekdays to Victoria with some peak hour journeys extended from Waltham Cross to Flamstead End via Cheshunt. In 1970 the route was withdrawn north of Ponders End and in 1971 back to Edmonton, although a few peak hour journeys continued to serve Ponders End. Seven years later route 149 was re-extended to Ponders End at all times. In 1985, it was withdrawn between Waterloo and Victoria, and further cut back to Liverpool Street in 1991 apart from a few early weekday journeys to Mansion House station. In the same year it was extended back to Waterloo during weekday peak hours. In 1998 the route was extended south from Liverpool St station to London Bridge station. The service was converted to an articulated bus operation in 2004 with a fleet of Mercedes-Benz O530G and withdrawn north of Edmonton, with new route 349 taking over. In 2005, route 149 was subject to intensive bus priority measures along the length of its route. A year later the route was used to test the iBus recorded announcements system to aid visually impaired passengers. Wright Eclipse Gemini 2 bodied Volvo B9TLdouble deck buses were introduced on 16 October 2010 as part of the Mayor of London's policy to withdraw articulated buses from London. The route was transferred to Tottenham garage and the peak vehicle requirement was increased to 36. Arriva London has successfully retained route 149 with new contracts starting on 16 October 2010 and 17 October 2015. New Routemasters were introduced on 17 October 2015. The rear platform remains closed at all times except for when the bus is at bus stops. It is London's fourth busiest bus route as of 2015/16, having carried 14.1 million passengers.
Crime
Route 149 suffers from higher levels of crime than most routes in London. In the 2006-07 financial year the route had the sixth highest levels of reported incidents on the network. This was lower than in the previous year, when it was fifth. In 2007, the route was highlighted as having extremely high levels of pickpocketing by London Assembly member Jeanette Arnold. Ken Livingstone, then Mayor of London, was called upon to increase policing on the route, but stated that pickpocket activity had in fact decreased between 2005 and 2007. A vehicle on the route was involved in an accident in Tottenham on 15 September 2009 when a double-decker bus on route 243 crashed into it. The driver and four passengers were injured in the accident, as was the driver of the 243, but there were no serious injuries. On 27 February 2010, a bus driver on a late night working of the route was assaulted by a passenger who had failed to alight at the correct stop. Two weeks earlier a driver on the route had been suspended for assaulting a pedestrian near Monument Station. On 15 October 2015, a man was jailed for throwing walking frame off London bus and shouting hurling racist and Islamophobic abuse at the Turkish man in Tottenham, north London, went viral. On 12 April 2018, a man wrestles knife away from attacker, he was left with cuts to his head and hand after he disarmed a knife attacker on a London bus. Police were called to reports of a stabbing on a 149 bus on Stoke Newington Road just before 14.00 BST on Tuesday.
