One in five consumers will be using contactless ticketing on their mobile devices by 2020 - the equivalent of some 300 million people worldwide.
Such technology and consumer behaviour will be led by airlines, rail providers and bus operators, alongside entertainment and attraction venues.
Juniper Research says in its forecast that countries where contactless equipment is already in position, such as Japan, UK, France, Hong Kong and South Korea, will continue to drive the growth of the technology.
The fledgeling smartwatch, which has yet to truly set the world ablaze with support, is part of the equation, with a range of travel brands (Expedia, American Airlines, etc) jumping on the bandwagon.
Research author Nitin Bhas says:

"This means that ticketing providers are presenting a multi-channel ticketing offering to their omni-channel customers, thereby providing a seamless and integrated experience."
Still, wearable devices will remain useful for "ticket validation", rather than purchasing devices, Juniper says.
Unfortunately for the aviation industry, adoption rates of Near Field Communication (NFC) technology to replace mobile boarding passes, baggage tickets and identity information have been scaled back by Juniper.
The company claims it has not seen "significant" take-up of the technology by airlines and airports in the past 12 months.

"NFC is unlikely to have much impact in the near-term on the purchase of airline tickets, with this activity remaining largely remote via online or mobile channels."
NB: Contactless image by Zhitkov via BigStock.