"critical route" is correct and usable in written English.
You can use the phrase to refer to an important route, typically for travel or communications, that needs to be protected or kept safe. For example, "The army established a critical route for sending supplies to the front lines."
Not definitively shaped - no reading or interpretation is ever final - but formed into a critical route.
Not until trappers Jedediah Smith and Thomas Fitzpatrick rediscovered the pass in 1824 did that critical route through the mountains became widely known.
BA is the first to put the bed in business class and is trying its novelty out on the critical route from Heathrow to New York's JFK.
Two white balloons, holding video cameras aloft, are part of an extensive surveillance operation in the area, and the military is expanding roads and building a three-mile concrete blast wall along a critical route through the district to block the insurgents' reinfiltration from the south.
Colin Le Ray, Guernsey Airport director, said in a report to the States that a single operator on the "critical route", which daily carries more than 2,000 people - 50% of all passengers travelling between the island and the UK, must they show it can source suitable replacement aircraft in a timely manner.
The news about the Red Line's maintenance schedule is the latest bad headline for commuters on the critical route linking downtown D.C. with Maryland's Montgomery County.
Finally, we propose some critical routes as well as corresponding managerial implications for establishing such unified market.
But the government contended that the deal still amounted to a takeover that would inhibit competition between the two carriers on nine critical routes.
By defining critical routes in PERT networks, a combination of stochastic and mathematical models calculates the delivery time uncertainty in supply networks.
The various outcrops claimed by China cover just 13 square kilometres in total, but are key to controlling 2m square kilometres of sea and critical routes to the Pacific, according to a recent US state department assessment of Beijing's claims.
Many Conservative MPs now want the matter to be reopened, citing the economic and trade benefits of increased capacity and the risk of the UK losing critical routes to rival "hubs" in Europe.
