“…However, there are frequently documented barriers to cycling for people of all ages, including feeling unsafe and vulnerable in heavy traffic, especially as a result of poor infrastructure and lack of segregated, dedicated or prioritised routes for cyclists (Bannister, 1988;Krizek and Roland, 2005;McClintock and Cleary, 1996;Nankervis, 1999;Newby, 1993). For parents in particular, road safety (and to a lesser extent safety from crime) are important concerns, and they perceive a trade-off between ensuring children's safety and fostering their independent mobility (Bickerstaff and Shaw, 2000;Cahill, Ruben, and Winn, 1996;Tyrrell, 2000) -where social norms tend to err in the favour of personal security over independence (Lorenc, Brunton, Oliver, Oliver, and Oakley, 2008). It is also noted that when good infrastructure is put in place, it does not necessarily increase the amount of cycling (Davies, Gray, Gardner, and Harland, 2001;Welleman, 1997), perhaps because social norms are hard to overcome and concerns over safety dominate (TfL, 2009).…”