After a six-month wait for needed approvals, Metropark LTD. recently opened a new surface parking lot at 43 Weybosset St. behind the old National Bank façade. “Restaurants are doing better than last year and, yes, there are more people working downtown. … Demand [for parking] is up,” said Charlie Meyers, president of Metropark. The company’s citywide revenue is up 10 percent this year. Revenue from city parking meters is also up, 55 percent since 2009, according to Providence Parking Administrator Leo Perrotta.