The phrase "a number of impediments" is correct and usable in written English.
It can be used when discussing various obstacles or challenges that may hinder progress or success in a particular context.
Example: "The project faced a number of impediments that delayed its completion, including budget constraints and staffing issues."
Alternatives: "several obstacles" or "multiple challenges".
Marriage is safeguarded by a number of impediments that render the marriage null whether they are known or not, and the freedom of the spouses must be assured.
The jail is among a number of impediments to the Trinity River Corridor Project, a redevelopment effort that has long been in the works for the area.
However, there are a number of impediments which are still under resolution in order to realize the full potential of such a system.
"The settlement basically removes a number of impediments toward having a long and commercially healthy run on Broadway and having future productions of the show around the world that will benefit everyone involved," this person said.
A number of impediments challenge the scaled deployment of capital to energy efficiency, including the need for: (1) data and underwriting techniques to include energy considerations in risk and asset management decisions; (2) a liquid secondary market for existing and proposed energy efficiency financing products; and (3) technology innovations to measure and benchmark energy efficiency risk.
Some authors (Chabari and Njiru 1991; Noor 1999) have reported a number of impediments to livestock marketing in the ASALs of northern Kenya including poor quality roads, lack of reliable market information, stock rustling and general insecurity, absence of consistent livestock marketing policies and hence dependency on private traders.
Though there are a number of potential impediments to the broad adoption of hydrogen fuel cells in passenger cars, major automakers expect to commercialize the technology in their vehicles by 2015.
Further, many of the land holdings are not redistributed to the poor but to political cronies with little farming experience--so called "cell phone farmers". There are a number of other impediments to land reform, including climate, the rising costs of farm production, and the volatility of global agricultural prices.
However, a number of significant impediments are identified in the respective national climate change policy schemes.
But as Eni moves to carry out a more thorough appraisal, a number of significant impediments could upend its — and Egypt's — ambitions.
A five-country evaluation of data structures supporting health care systems in developing countries across 4 continents identified a number of structural impediments (timeliness, accuracy, simplicity, flexibility, acceptiblity, usefulness) to an effective health information system [13].
