Houston cyclists took their message to City Hall on Tuesday, holding a bike ride and rally, urging city leaders to approve a proposed bike plan that would add on-street lanes and trails over the next 20 years.

Dozens rode from BikeHouston's headquarters to City Hall around noon, in support of the ride organized by the local cycling advocacy group. BikeHouston and others helped to develop the bike plan, led by the city's planning department.

The plan lays out a two-decade goal of more than tripling the mileage of bike lanes in Houston, with a focus on high-quality facilities, including 668 miles of bike paths separated from automobile traffic. The plan, if fully implemented, would cost about $550 million, based on the highest estimates.

Planning officials debuted the plan in February, and have said they hope to have it approved by the end of the year. Tuesday's rally was aimed to focus that support for the coming weeks when the plan could be discussed by City Council.

Meanwhile, "people in need continue to ride in our current conditions, which are often dangerous," John Long, executive director of Bike Houston, said in a statement.

Long said 42 percent of cyclists in Houston make less than $25,000, and many rely on transit. As a result, Metropolitan Transit Authority reported 262,271 bikes loaded onto buses in 2015.

The bike plan has support from Mayor Sylvester Turner.

"It is an exciting plan," Turner said in the BikeHouston statement. "It is aggressive, ambitious, but I believe it is very realistic...and we will get it done."