PRINCETON -- The woman who was struck and killed by a concrete truck while in a crosswalk in Princeton Tuesday evening was a longtime political science professor at Duquesne University in Pittsburgh.

Leslie Goodrich Rubin, 62, was on a crosswalk around 5 p.m. Tuesday when a concrete truck made a left turn onto Washington Road from Nassau Street and hit her, police said.

Rubin was pronounced dead on the scene, police said.

The chair of Duquesne's political science department, Clifford Bob, said Rubin focused her research and teachings on American political development and political philosophy. She left her professorship about two years ago, he said, and was really active in her community in Pittsburgh.

Rubin's husband, Charles Rubin, also taught political science at Duquesne, and remains a faculty member, Bob said. He had recently taken a visitor professorship at Princeton for the 2017-18 academic year through the Princeton's James Madison Program. The couple was spending the year in New Jersey while Charles Rubin completed the program.

"She was very warm, thoughtful, funny and friendly, and the whole department is really heartbroken," Bob said.

The James Madison Program mourns our beloved Leslie Rubin, wife of Prof Charles Rubin, who died in a tragic accident in Princeton yesterday. — Robert P. George (@McCormickProf) October 11, 2017

All of us here are in a state of shock. We've thrown our arms around our dear Charlie in a desperate effort to comfort him---and ourselves. — Robert P. George (@McCormickProf) October 11, 2017

The driver of the truck was identified as 60-year-old Ralph Allen of Tabernacle. He was unhurt, and police are investigating the cause of the crash.

Paige Gross may be reached at pgross@njadvancemedia.com. Follow her on Twitter @By_paigegross. Find NJ.com on Facebook.